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【单选题】
苯丙氨酸羟化酶的辅酶是:( )A.
叶酸
B.
二氢叶酸
C.
四氢叶酸
D.
四氢生物嘌呤
E.
磷酸吡哆醛
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举一反三
【单选题】Professor Williams keeps telling his students that the future _____ to the well-educated.
A.
belongs
B.
is belonged
C.
is belonging
D.
will be belonged
【单选题】听力原文：W: John, are you doing research for Professor Williams this semester? M: Actually, I'm working as his teaching assistant. Q: What does the man mean? (18)
A.
He needs another job as research assistant.
B.
He asked Professor Williams for assistance.
C.
He assists Professor Williams with his teaching.
D.
He is doing research with Professor Williams.
【单选题】听力原文：W: Since Professor Williams is willing to give us a three-day extension to finish the project, maybe he'll also give us a few more days for this assignment. M: Betty, let's not push our luck! OK?...
A.
They shouldn't make too many requests.
B.
They should ask for further extension.
C.
They should finish the project as scheduled.
D.
They should not try their luck.
【单选题】听力原文：M: May I see Dean Williams please? W: Dean Williams won't be in the office this afternoon. I'm an assistant dean, perhaps I can help you. M: I need an extension for a paper, and my professor said...
A.
Dean Williams.
B.
Professor Brown.
C.
An assistant dean.
D.
A student.
【单选题】听力原文：M: May I see Dean Williams please? W: Dean Williams won't be in the office this afternoon. I am an assistant and perhaps I can help you. M: I need a few more days for my paper and my professor sa...
A.
To get medical treatment.
B.
To take a final exam.
C.
To find out the exam schedule.
D.
To get an extension for a paper.
【单选题】新加坡,日本,澳大利亚的象征分别是( )。
A.
圣淘沙岛，桂离宫，大堡礁
B.
鱼尾狮塑像，富士山，悉尼歌剧院
C.
鱼尾狮塑像，樱花，黄金海岸
D.
帕提亚，济州岛，大堡礁
【单选题】听力原文：W: John, are you doing research for Professor Williams this semester? M: Actually, I am working as his teaching assistant. W: You are lucky. It's a position where you can learn much from the prof...
A.
He needs another job as research assistant.
B.
He asked Professor Williams for assistance.
C.
He assists Professor Williams with his teaching.
D.
He is doing research with Professor Williams.
【单选题】Woman: John, are you doing research for Professor Williams this semester? Man: Actually, Im working as his teaching assistant. Question: What does the man mean?
A.
He needs another job as research assistant.
B.
He asked Professor Williams for assistance.
C.
He assists Professor Williams with his teaching.
D.
He is doing research with Professor Williams.
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