Cho hàm số f ( x ) = x 3 - 1 x - 1   k h i   x ≠ 1 2 m + 1   k h i   x = 1 . Giá trị của tham số m để hàm số liên tục tại điểm x₀ = 1 là:

A. m = 1

B. m =  - 1 2

C. m = 0

D. m = 2

Kiểu gen AaBB  D E d e   khi giảm phân cho được bao nhiêu loại giao tử nếu gen liên kết hoàn toàn?

A. 2

B. 4

C. 8

D. 16

The storm last month was disastrous, ________we should organize a show to raise money for the victims.

A. or

B. because

C. so

D. and

Tô Hoài gia nhập Hội Văn hóa cứu quốc năm bao nhiêu?

A.   1941

B.   1942

C. 1943

D.   1944

Choose the letter A, B, C or D to complete the passage below

They widen the roads so cars and lorries can get to the village easily. They build a medical centre so people’s health can be looked (6) __________ at any time. They build a new school so their (7) __________ have better learning conditions. They build a bridge (8) __________ the river so villagers have a shorter way to town. They also build a football ground so their children can (9) __________ sports. In addition, they grown cash crops so people can export the crops and have more money.

I would like to become an agricultural engineer in the future so I can apply new technology to our farming and do more for the village (10) __________ our parents did.

Question 6:

A. on

B. for

C. into

D. after