这道题脱式计算怎样算

What is the mans request？

A．To have breakfast in the room.

B．To pay the bill when checking out.

C．To sign the name in the morning.

D．To use a new credit card for the room.

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What does the man say about watching classic movies？

A．It is helpful in practicing one"s pronunciation.

B．It can make people relaxed.

C．It can enrich their college life.

D．It is the source of classic music.

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Whether English should be a tool or a subject has generated a heated discussion over the past decade. Some argue that English as a subject has taken up too much time of Chinese students, so that it should be removed from the school syllabus. While others argue that English as a tool should be learned. Whats your opinion？ Write on ANSWER SHEET THREE a composition of about 200 words on the following topic-. Is English a Tool or a Subject？ You are to write in three parts. In the first part, state specifically what your opinion is. In the second part, support your opinion with appropriate reasons. In the last part, bring what you have written to a natural conclusion or make a summary. Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.

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分泌褪黑素的是

A.下丘脑

B.腺垂体

C.甲状腺

D.肾上腺

E.松果腺

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眼晶状体

A.异种抗原

B.同种异型抗原

C.异嗜性抗原

D.自身抗原

E.肿瘤相关抗原

请帮忙给出正确答案和分析，谢谢！