a solution to the critical section problem must satisfy which requirements

Ngày tải lên: 20/02/2014, 16:20

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Ngày tải lên: 20/06/2014, 21:20

... transmitting the avian influenza is not proven either. One, how does an intestinal virus change to that of a respiratory airborne-virus that is adapted to the mammalian lung? Second, the ... This allows the codons in the HA genes to change. Researchers have ample evidence to trace the non-silent mutations of the influenza virus amino acid as the strains that show the greatest ... infects mammalian hosts. These animals, usually pigs, act as a transformer or converters; creating a strain that can more readily infect humans. Pigs can be infected with both avian and human influenza...

Ngày tải lên: 02/11/2012, 11:12

... blanket (n) - to lay out (lay - laid - laid) - blind man’s buff (n) - to catch the bus (catch - caught - caught) It was a beautiful day, my friends and I decided to go on a picnic. We took ... Write a passage about your picnic in last summer vacation. - Prepare: Language focus of Unit 3 After meal we played games “What song is it?” and blind man ‘s buff. Late in the afternoon ... TO CATCH THE BUS (CATCH - CAUGHT - CAUGHT) II. Write a passage entitled A Country Picnic” BLANKET (n )TO LAY OUT(LAY - LAID - LAID)PICNIC SITE (n) I. NEW WORDS: - to go on a...

Ngày tải lên: 01/06/2013, 08:47

Ngày tải lên: 01/06/2013, 08:47

... he also helps on the (7) ……… The family relaxes on Saturday afternoons and (8)…… Peter play (9) …… Van likes the Parkers, and he enjoys being a (10) …… of their family. Ohio farmer works part-time ... part-time at a grocery store Peter Sam after farm. they watch baseball member 1. Where is Van living now? 2. How long will Van stay there? 3. What do Mr. and Mrs. Parker do? 4. What does Van ... 5. The Parker family and Van eat hamburgers or hot dogs while they watch Peter play. T F F T F a doctor  a farmer three  two  the chickens the pigs maize He is feeding the...

Ngày tải lên: 21/06/2013, 01:25

... and hour to reach half and hour to reach the waterfall. the waterfall. e. They planned to have the trip e. They planned to have the trip in in June. June. f. She loves to watch the stars ... to half and hour to reach the waterfall. reach the waterfall. e. They planned to have the trip e. They planned to have the trip ….… ….… June. June. f. She loves to watch the starts f. ... 3. 3. Nga is sick today, Nga is sick today, 4. 4. Na woke up late, Na woke up late, 5. 5. The new camera The new camera didn’t work, didn’t work, a. so I turned on the a. so I turned on the air...

Ngày tải lên: 26/06/2013, 01:27

... kilometers to the north of Ha Noi. 2.How did Ba and his family get to the village ? They got there by bus. 3.Where is the banyan tree ? It is at the entrance to the village. 4.What did they see on the ... 6. between. 1.Now ask and answer 1.Now ask and answer . . 1 1 A A : : What is What is the girl /the boy /the man /the woman the girl /the boy /the man /the woman doing? doing? ... F 4.Liz had a snack at at the house of Ba , s uncle. F 5.There is a shrine on the mountain near Ba , s village T 6.Everyone had a picnic on the mountain. F 7.Everyone left the village late in the...

Ngày tải lên: 01/07/2013, 01:25

... entrance to the village. There is a small bamboo forest at the entrance to the village.   There is There is a big old banyan tree a big old banyan tree at the entrance to the village at the ... weekends. 3. There is a small bamboo forest at the entrance to the village. 3. There is a small bamboo forest at the entrance to the village. 4. Liz had a snack at the house of Ba’s uncle. 4. Liz had a ... village .   Ba and his family had Ba and his family had a day a day trip to their home village trip to their home village 3. 3. F F . . There is a small bamboo forest at the entrance...

Ngày tải lên: 05/07/2013, 01:27

... bus. 4. 4. The banyan tree is at the entrance to the village. The banyan tree is at the entrance to the village. 5. 5. They saw the shrine of a VietNamese hero on the They saw the shrine of a VietNamese ... tree at the entrance to the village. 3. There is a big old banyan tree at the entrance to the village. 4. Everyone had a snack under the banyan tree. 4. Everyone had a snack under the banyan tree. 6. ... going there for their weekends. 3. There is a small bamboo forest at the entrance to the 3. There is a small bamboo forest at the entrance to the village. village. 4. Liz had a snack at the house...

Ngày tải lên: 28/07/2013, 01:27

Ngày tải lên: 17/08/2013, 11:00

... Ha Noi. - They got to the village by bus. - They got to the village by bus. - The banyan tree is at the entrance to the village. - The banyan tree is at the entrance to the village. - They saw ... is Ba’s village? Where is Ba’s village? 2. 2. How did Ba and his family get to the village? How did Ba and his family get to the village? 3. 3. Where is the banyan tree? Where is the banyan tree? 4. 4. What ... the shrine of a Vietnamese hero on the mountain. - They saw the shrine of a Vietnamese hero on the mountain. - They had their picnic on the river bank. - They had their picnic on the river bank. -...

Ngày tải lên: 27/08/2013, 07:10

... What does Van do in the afternoon ? 4. What do the whole family do on Saturday afternoons - Ask Ss to read the text and answer the questions - Call on some pairs to read their answers aloud ... key 1. F ( Ba and his family had a day trip to their home village .) 2. T 3. F ( There is a big old banyan tree at the entrance to the village ) 4. F (people had snack under the banyan tree) 5. ... kilometers to the north of Ha Noi 2. Ba and his family got to the village by bus . 3. The banyan tree is at the entrance to the village . 4. They saw the shrine of Vietnamese hero on the mountain...

Ngày tải lên: 05/09/2013, 06:10

... than standard time 1. Mr Parker grows maize on his farm , while Mrs Parker works part – time at a grocery store in a nearby town. They have two children. Peter is the same age as Van, and ... Sam is still in primary school. 2. On Saturday afternoons, Peter plays baseball .The Parker family and Van eat hamburgers or hot dogs while they watch Peter play. The Parkers are nice so Van ... Ohio farmer works part – time at a grocery store Peter Sam after farm they watch baseball member Read ,then match each phrase with suitable meaning ã Grown maize ã Work part time ã Grocery store ã Collect...

Ngày tải lên: 08/09/2013, 04:10

... family got to the village by bus. 4. The banyan tree is at the entrance to the village. 5. They saw the shrine of a VietNamese hero on the mountain. 7. They had their picnic on the river bank. 8. ... to their home village. 3. There is a big old banyan tree at the entrance to the village. 4. Everyone had a snack under the banyan tree. 6. Everyone had a picnic on the river bank. 8. Liz took a ... village. 2. Many people like going there for their weekends. 3. There is a small bamboo forest at the entrance to the village. 4. Liz had a snack at the house of Ba’s uncle. 5. There is a shrine on the...

Ngày tải lên: 15/09/2013, 12:10

... also has to help on the Sometimes, he also has to help on the farm farm . The family relaxes on Saturday . The family relaxes on Saturday afternoon and afternoon and they watch they watch ... like the Parkers A Vietnamese boy named Van is living A Vietnamese boy named Van is living with the Parker family in the American with the Parker family in the American state of state ... Parker is a . Mr. Parker is a farmer farmer and Mr Parker and Mr Parker works part-time works part-time at a at a grocery store grocery store in a nearby town. They in a nearby...

Ngày tải lên: 27/09/2013, 13:10