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【单选题】
对亲电反应而言 , 化合物萘活性最高的部位是( )
A.
α位
B.
β位
C.
α’位
D.
β’位
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【判断题】寻租是指行政权力的当事人通过合法或非法的努力帮助自己建立垄断地 位,以获取高额垄断利润的行为。()
A.
正确
B.
错误
【单选题】.I didn’t see Mr White at the meeting ._____ he come, he would have given a lecture.
A.
Would
B.
Did
C.
Should
D.
Had
【单选题】听力原文:M: Good afternoon. This is Mr. White at the Friendship Hotel. Is Mr. Black in? W: No, he is out to lunch. I'll be glad to take a message. Where is Mr. Black now?
A.
He's at the Friendship Hotel.
B.
He is at lunch.
C.
He is at another hotel.
【单选题】I ______ Mr White at that time, otherwise I wouldn’t have asked you for some information about him.
A.
hadn’t known
B.
didn’t know
C.
don’t know
D.
haven’t known
【单选题】Wh at is Mr. White?
A.
Mr. White is an English student.
B.
Mr. White is an English teacher.
C.
Mr. White is an art teacher.
D.
Mr. White is an art student.
【简答题】句型转换。 1. Mr. White had lunch at school yesterday. (改为一般疑问句) _____ Mr White _____ lunch at school yesterday? 2. He was in a theatre yesterday. (改为否定句) He _____ _____ in a theatre yesterday. 3. Will you...
【简答题】完形填空。 Mr White and Mrs White live at Duke House Road in London. They have 1 children. One is seven 2 the other is nine. Mr White and Mrs White love their children. Every morning, Mr White goes to 3 an...
【简答题】Mary: Hello, this is Mary. Mr White: Hello, this is Mr White, Peter’s father. Mary: Hello, may I speak to Peter? Mr White: Sorry, 小题1:________________. Mary: Could you tell me when he’ll come back? Mr...
【简答题】Today is Sunday. It’s sunny. Mr White is at the beach. Look, he has a toy whale. Its tail is white. Mr White is playing with his whale. He is happy.
【单选题】碱化饲料的原理是让-OH离子破坏了( )的结构
A.
纤维素
B.
半纤维素
C.
矿物质
D.
木质素
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