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【多选题】
Smith裂解法中用到的试剂有

过碘酸
四氢硼钠    
浓硫酸
氢氧化钠
稀盐酸
【单选题】
Excuse me, sir. Where is Dr. Brown’s office?

You can’t ask me
Pardon? I have no idea
Please don’t say so
Sorry I don’t know, but you can ask the man over there
【单选题】
Mr. Smith is said to be ( ) to the new branch of the company in Paris.

transplanted
transferred
transformed
transmitted
【单选题】
Every morning Mr. Smith takes a ______to his office.

20 minutes walk
20 minutes walk
20-minutes walk
20-minute walk
【判断题】
A: Hello! Are you John Smith? B: Yes, I am.

正确
错误
【单选题】
Smith never went to see his wife again,______ to apologize.

nor did he write
nor he did write
he did write
nor he wroten
【判断题】
A: Sir, no smoking here. B: Sure, I don’t smoke.

正确
错误
【单选题】
Every morning Mr. Smith takes a ____walk to his office.

20 minute
20 minutes
20-minutes
20-minute
【单选题】
The Smith family will have gone ______ by the time we finish summer school.

camp
camps
camping
camped
【单选题】
Professor Smith, together with twenty of his students, [] coming to our school in May for a short visit.

is
are