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【判断题】
“:=”赋值指令是用于对程序数据进行赋值,赋值可以是一个常量,但不能是数学表。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】行列式D中若某行(列)为0，则D=0． 行列式D中若任一行(列)不为0，则D≠0?
【判断题】N二4 库存管理中ABC分类法就是把所有库存单价很高很重要的物品定为A类(这类无物品品种很少的),需要重点关注。相反很多库存物品价值比较小,就确定为C类,可以在这类物品上少费时间。处于中间的就是B类物质。
A.
正确
B.
错误
【单选题】Steve isn’t as ______ as Kelly. He often makes mistakes in his writing.
A.
careless
B.
tidy
C.
careful
D.
difficult
【简答题】补全对话。 Charley: Come on, Steve. 1 Steve: Wait a moment. 2 Charley: OK. Steve: By the way, can we give my sister a ride home tonight? Charley: Sure. 3 Steve: Yes. She wants to take some pictures. Charle...
【单选题】听力原文：W: Why is Steve applying for financial aid? Doesn't he have a lot of money? M: Not enough, I guess. What does the man mean?
A.
Steve doesn't need a scholarship.
B.
Steve doesn't have much money.
C.
Steve doesn't know how to apply.
D.
Steve isn't applying for a scholarship.
【简答题】大气包括干洁空气、水蒸气和各种()。
【单选题】--- Steve, don’t do eye exercises with your eyes _________. --- Sorry, I won’t.
A.
close
B.
closed
C.
open
D.
opened
【单选题】– Steve. We will take an examination in physics next week. --- Yes, but don’t work too hard. _______.
A.
It doesn’t matter
B.
All the best
C.
Take it easy
D.
Try your luck
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