Cho hàm số: y = x 3 + 2 m x 2 + 3 m   − 1 x + 2  có đồ thị (C)  Đường thẳng d : y = − x + 2  cắt đồ thị (C) tại ba điểm phân biệt A   0 ; − 2 ,   B   v à   C . Với M 3 ; 1 , giá trị tham số m để tam giác MBC có diện tích bằng 2 6  là:

A. m=-1 

B. m = -1 hoặc m=4

C. m =4

D. không tồn tại m

Trong không gian với hệ trục tọa độ Oxyz, cho 2 điểm A(2;1;0), B(1; - 1;3). Mặt phẳng qua AB và vuông góc với mặt phẳng (P): x+3y - 2z - 1=0 có phương trình là

A. 5x - y+z - 9=0

B.  - 5x - y+z+11=0

C. 5x+y - z+11=0

D.  - 5x+y+z+9=0

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions

She was the first woman in the Philippines. She was elected as the president of the country.

A. She was the first woman being elected as the president of the Philippines.

B. She was the first woman who is elected as the president of the Philippines.

C. She was the first woman to be elected as the president of the Philippines.

D. She was the first woman elected as the president of the Philippines.