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【多选题】
X 射线衍射仪法中对粉末多晶样品的要求是 ______ 。A.
粉末粒度要大小适中，在1μm-5μm之间
B.
不能有应力和
C.
样品厚度最佳
D.
粉末纯度高
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【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
To persuade Mary to spend more time on her lessons.
B.
To help Mary to prepare for the upcoming concert.
C.
To talk with Mary about going to the concert.
D.
To ask Mary to stop worrying about the exam.
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
It will last for two weeks.
B.
It has come to a halt.
C.
It will end before long.
D.
It will probably continue.
【单选题】听力原文：M: I've been getting annoying calls for two weeks. When I answer the phone, the other party hangs up without saying anything. I've tried everything including blowing a whistle into the receiver. ...
A.
Disconnect his telephone.
B.
Blow a whistle into the receiver.
C.
Keep a record of incoming annoyance calls.
D.
Report his problem to the police.
【单选题】关于“跟卖”,以下说法错误的是?()
A.
跟卖时不要明目张胆的跟卖一些大牌,比如跟卖Apple, Samsung, Cannon等,容易造成账户的审核
B.
针对有品牌商品,想跟卖的话,就尽快去拿到品牌授权
C.
无品牌商品可以随意去跟卖,不用每天去检查
D.
“跟卖”就是别人创建的产品页面,你也在这个页面里面卖同样的东西
【简答题】Solar Systems Co (S Co) makes two types of solar panels at its manufacturing plant: large panels for commercial customers and small panels for domestic customers. All panels are produced using the sam...
【单选题】听力原文：M: We were on vacation two weeks. W: And half the time it was rainy. Q: What does the woman imply? (18)
A.
She did not like all the rain.
B.
The rain is good for the crops.
C.
Part of each day was clear.
D.
She hopes the drought is over.
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