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【多选题】
在列举的条件中()属于液相色谱仪紫外检测器的技术指标。A.
.紫外检测器波长范围是190 ~700 nm
B.
波长精度
C.
波长重复性
D.
票移<10uV/次
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举一反三
【单选题】—Susan, why are you still here? They are all ready to start. —I’m sorry, but I when to leave.
A.
don’t tell
B.
didn’t tell
C.
wasn’t told
D.
didn’t told
【单选题】听力原文：M: We don't have to start for the stadium yet. Wouldn't you like something else? W: No, thanks. You'd better tell her to bring our check. It'll take a while to find a parking place, especially wi...
A.
A restaurant.
B.
The station.
C.
The stadium.
D.
A star.
【简答题】Don't start giving me problems otherwise I'll have to be very ________ indeed. (pleasant)
【单选题】听力原文：M：Don't forget the show will start at seven o'clock at the People's Theater．I'll meet you at the gate． W：Well，if you don't see me at seven，I will be doing my homework and in that case，you can go ...
A.
She doesn't know where the People's Theater is.
B.
She doesn't think the show will start at seven.
C.
She has homework to do before she goes to the show.
D.
She promises to meet the man at the gate.
【简答题】Don’t start giving me problems ; otherwise , I’11 have to be very (pleasant) ____________ indeed.
【单选题】Why __ practice again and again?
A.
not to start to
B.
don’t start
C.
not start
D.
not start to
【简答题】They are teachers and don't realize _____ to start and run a company. (A) what it takes (B) what takes it (C) what they take (D) what takes them
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