ĐỀ THI HSG TOÁN ĐỀ 2
Đề thi HSG Anh 9 Đề 2+Đáp án
... gold valuable watch
25 . Somebody forgot this hat. I wonder
a. whose is this hat. b. whose hat this is. c. whose hat is this. d. is this whose hat.
26 . You shouldn’t go to the meeting you’ve ... benefits !
1. 2. 3. 4. 5.
6. 7. 8. 9. 10
IV. WRITING ( 10 points )
Rewrite the sentences , using the words given:
1. Nobody has ever rented this expensive villa for years.
This expensive
2....
Đề thi HSG Toán 9 vòng 2
...
+
++
+
=
+
++
+
==
2
2
)13 (2
)13(
324 2
324
324 2
324
2
2
2
x
x
+
2
2
)13 (2
)13(
=
1 32
)13(
2
++
+
+
)13 (2
)13(
2
+
=
)13(3
)13(
2
+
+
+
)13(3
)13(
2
=
3
13
+
+
2
2
2
2
3
13
===
x
Rút gọn y:
2
y
=
++
+
526 20
53
526 20
53
+
153
53
153
53
)15( 52
53
)15( 52
53
22
+
+
=
+
++
+
=
=
11
26
11
6
44
24
)153)(153(
)153)(53()153)(53(...
De thi HSG huyen NĐ vong 2
... C = 6 gam > % C =
5,6
6
. 100% = 92, 3%
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0,5
0 ,25
0 ,25
0 ,25
...
P
2
O
5
+ 6 NaOH 2 Na
3
PO
4
+ 3 H
2
O (3)
0,5
0,5
0,5
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0,5
0,5
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25
0 ,25...