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【单选题】
8焦耳=( )。A.
9.8W
B.
9.8kgf·m
C.
9.8N·m
D.
1N·m
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举一反三
【简答题】统计数据收集过程中,可能存在两种误差:_______和_______。
【单选题】听力原文：W: Hey, Charlie, I've been thinking. M: Oh, yeah? About what? W: About the future.., about what I want to be. M: Hmm. I am sure there are a lot of things that you can do. W: Mmm, maybe. I'd like ...
A.
Amy is seeking advice from Charlie about her future job.
B.
Amy is taking to Charlie about what she'd like to do in the future.
C.
Amy is discussing with Charlie what types of job she is suitable for.
D.
Amy is explaining to Charlie why some jobs are not suitable for her.
【单选题】关于标识符,下列说明错误的是
A.
标识符可以由字母、数字、下划线组成
B.
标识符必须由字母、下划线、数字开始
C.
标识符大小写敏感(不同)
D.
标识符不可以使用Python的关键字
【简答题】等高线地形图中,等高线凸出部分指向海拔较高处,则为( )。
【简答题】等高线地形图中,等高线凸出部分指向海拔较低处,则表示为( )。
【单选题】第二节 完型填空 阅读下面短文，从短文后所给的[A]、[B]、[C]三个选项中选择能填入相应空白处的最佳选项。 When men grow older, their hair often begins to fall out. When hair begins to fall out【B1】 old age, it is impossible to make it【B2】again. I know...
A.
such as
B.
because of
C.
instead of
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