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【简答题】
什么是基准物质?作为基准物质应具备哪些条件?
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举一反三
【简答题】Jim: Let’s play volleyball, OK? Tony: Sorry, I don’t have a volleyball. But I have a basketball. Jim: I don’t want to play basketball. I only want to play volleyball. Tony: Who has a volleyball? Do yo...
【简答题】Americans are very direct people. When they want something they say “yes” and when they don’t they say “no”. If they want something different from what is given, they ask for it. Here’s an example. I ...
【简答题】I don’t have it. But I do have her_______ .
【简答题】根据所听句子，选择恰当答语。 ( )1. A. Sorry, I don’t have one. ( )2. A. Yes, it is. ( )3. A. Yes, he works on a farm. ( )4. A. Yes, you are right. ( )5.A. Yes, I am Mr. Green. B. OK. Thanks a lo...
【简答题】Americans are very direct people. When they want something they say “yes” and when they don’t they say “no”. If they want something different from what is given, they ask for it. Here’s an example. I ...
【单选题】I have read this message ________ times but I still don’t understand it. A. much B. many C. more D. some
A.
1
B.
2
C.
3
D.
4
【简答题】PLC 能类似继电控制中时间继电器的软器件是 __ __________ 。
【单选题】I have read this message ________ times but I still don’t understand it.
A.
much
B.
many
C.
more
D.
some
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