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【判断题】
铁壳开关安装时外壳必须可靠接地。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】—Our vacation was Yes, I'ye never had ______.
A.
greatly.., a good vacation
B.
very good.., the best vacation
C.
so great.., a better vacation
D.
such great.., the better vacation
【判断题】发现机器有异味或异响时,应马上停机,立即报告有关人员。
A.
正确
B.
错误
【单选题】-Have you had a good day? -Yes,but I'm very tired.
A.
Right
B.
Wrong
【多选题】下列选项中,风险通常比政府债券高的金融工具有( )。
A.
银行定期存款
B.
期货
C.
期权
D.
股票
E.
公司债券
【简答题】SDS-PAGE电泳时,蛋白质样品的迁移速率只与样品自身的( )有关,与此相比,聚丙烯酰胺凝胶电泳还受到样品所带( )和空间构型的影响
【简答题】My heart was beating fast when I start to make the speech. I had prepared very good but it was the first time for me to speak to so many student in the public. So I was very nervous when I began to sp...
【简答题】SDS-PAGE 电泳时,蛋白质样品的迁移速率只与样品自身的( )有关,与此相比,聚丙烯酰胺凝胶电泳还受到样品所带电荷数和( )的影响。
【单选题】-------- I had a really good weekend at my uncle’s. --------  ______________.
A.
Oh, that’s very nice of you.
B.
Congratulations.
C.
It’s a pleasure.
D.
Oh, I’m glad to hear that.
【简答题】听力原文: Last week I went to the theatre. I had a very good seat. The play was very interesting. I did not enjoy it. A young man and a young woman were sitting behind me. They were talking loudly. I got ...
【简答题】D A team of scientists proved that seals had a very good sense of hearing. These men trained blind seals to expect food when they heard sounds. The seals always began snapping(猛咬) when a strong signal...
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