C.
Gọi
Vì
Suy ra tập hợp các điểm là mặt cầu tâm và có bán kính
Vậy diện tích của mặt cầu là: Chọn A.
He told her that he admired her paintings and she _______ the compliment by saying that she was a fan of his sculptures.
Questions 26-30: Each of the following sentences has one error (A, B, C, or D). Find it and blacken your choice on your answer sheet.
If I had knew the time when the football match started, I would have told you.
1.2. TIẾNG ANH
Questions 21-25: Choose a suitable word or phrase (marked A, B, C, or D) to fill in each blank.
We were made _______ a lot of homework to prepare for the upcoming test.
Fresh evidence has recently come to the light that suggests that the man didn't in fact commit the murder.
I don't think John broke the window because he wasn't here at that time.
Cho hàm số liên tục trên , có bảng biến thiên như sau:
Biết
Quay hình phẳng giới hạn bởi đồ thị hàm số , trục tung, trục hoành và đường thẳng quanh trục hoành ta được khối tròn xoay có thể tích là
When the professor and secretary are on a business trip, I will be in charge of that position.
Everything went according to plan although there were some problems, didn't they?