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【多选题】
以下描述正确的是( )。A.
职业道德没有确定形式，通常体现为观念、习惯、信念等
B.
职业道德依靠文化、内心信念和习惯，通过职工的自律来实现
C.
职业道德大多没有实质的约束力和强制力
D.
职业道德的主要内容是对职业人员义务的要求
E.
职业道德标准多元化，代表了不同企业可能具有不同的价值观
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【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
【单选题】—I had very good grades in English this time. —____________.
A.
Congratulations
B.
Best wishes D. Good luck D. Come on
【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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