Gọi \[R\]  là bán kính của đường tròn đáy hình trụ, \[h\] là chiều cao của hình trụ. Công thức tính thể tích hình trụ là
A. \[2\pi Rh+2\pi {{R}^{2}}\]
B.\[\pi {{R}^{2}}h\]
C.\[2\pi Rh\]
D.\[4\pi {{R}^{2}}\]

Một hình trụ có bán kính đáy là $3\,cm$ . Biết diện tích toàn phần gấp đôi diện tích xung quanh. Tính chiều cao của hình trụ.
A.$h=3(cm)$.
B.$h=5(cm)$.
C.$h=4(cm)$.
D.$h=2(cm)$.

Một hình trụ có đường cao bằng đường kính đáy. Biết thể tích của hình trụ là $128\pi \,c{{m}^{3}}$. Tính diện tích xung quanh của hình trụ.
A.${{S}_{xq}}=65\pi (c{{m}^{2}})$.
B.${{S}_{xq}}=64\pi (c{{m}^{2}})$.
C.${{S}_{xq}}=66\pi (c{{m}^{2}})$.
D.${{S}_{xq}}=63\pi (c{{m}^{2}})$.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to the following question.
Most of the classmates couldn't come. He invited them to the birthday party.
A.Most of the classmates which he invited to the birthday party couldn't come.
B.Most of the classmates that he invited them to the birthday party couldn't come.
C.Most of the classmates he was invited to the birthday party couldn't come.
D.Most of the classmates he invited to the birthday party couldn't come.

Find the word which has a different sound in the part underlined.
A.show
B.powder
C.follow
D.borrow

Find the word which has a different sound in the part underlined.
A.guarantee
B.Japan
C.state
D.Taiwanese

Find the word which has a different sound in the part underlined.
A.conveyor
B.zipper
C.problem
D.fiber

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following question.
I picked up my book. I found that the cover had been torn.
A.Picked up, the book was torn.
B.The cover had been torn when my book picked up.
C.When picking up my book, the cover had been torn.
D.On picking up my book, I saw that the cover had been torn.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to the following question.
What was the name of the man? You met and talked to him this morning.
A.What was the name of the man whose you met and talked to this morning?
B.What was the name of the man you met and talked to this morning?
C.What was the name of the man you met and talked to whom this morning?
D.What was the name of the man who you met and talked to him this morning?

Nối phép tính với tổng thích hợp:5780 + 4501465 + 2344 3340 + 4006 3809 62307346Làm lại
A.12
B.21
C.33
D.