Bộ đề thi giữa học kì 2 lớp 4

... A(1 ; 2 3 ) v B(0; 1) l :A. 1 41 6 22 =+yxB. 1 48 22 =+yxC. 1 14 22 =+yxD. 1 12 22 =+yxCõu 10: Phng trỡnh sau: 822 3 2 +=++xxx cú nghim : A. x = 2 ; B. x = - 3 ; C. x = - 2 ; D. ... ) 2 2 2 2 2 2 2 2 4 3 10 2 4 3 10 0 2 4 3 10 2 4 03 10 0 3 10 03 10 0x x xx x x x x xxx x x xx x > > > > > > >0.5 2 3 13 26 0 2 ... xảy ra khi và chỉ khi: . 0a b0 .25 Vậy: 2 5 2 5 2 .5 0 0x x x x+ = + .0 .25 Suy ra tập nghiệm của PT là [)0;T = +.0 .25 b. Ta có: 2 2 2 2 2 4 2 4 2 4 3 101 1 0 03 10 3 10 3 10x x...

... come 9. This test must be done ………………………………………… a. carefully b. careful c. careless d. care10. There is a meeting …………………………… 9 am and 2 pm. a. on b. between c. till d. atQuestion 2 . Fill ... passage. Ba’s home……1….lies near the foot of a 2 …and by a river. Getting to the village is an interesting …….3… People have a chance to … 4 .between the green paddy fields, cross a small ... village lies near the …………………………….of the mountain and by a river.a. foot b. leg c. feet d. legs 2. There is a small bamboo ……………… at the entrance to the village. a. forest b. forestation c. forest...

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