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【单选题】
以下叙述中不正确的是A.
预处理命令行都必须以#号开始
B.
在凡是以#号开始的语句行都是预处理命令行
C.
C程序在执行过程中对预处理命令行进行处理
D.
以下是正确的宏定义 #define IBM_PC
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【多选题】关于本征半导体和杂质半导体描述正确的是
A.
本征半导体导电能力很强。
B.
N型杂质半导体中的多子是自由电子。
C.
本征半导体掺入三价元素后变成N型半导体。
D.
掺杂过程中，五价元素称为施主杂质，三价元素称为受主杂质
【简答题】In what area does he lack experience? He has no experience in_________
【简答题】What qualities and experience will you need to _______ for the job?
【单选题】What concern was raised from the experience of purchasing jeans?
A.
It wasn't a complicated transaction before.
B.
It shouldn't have been so tiring and troublesome.
C.
The store has more varieties to choose from.
D.
The store should provide more information
【多选题】(2018· 全国 III 卷 ) 一列简谐横波沿 x 轴正方向传播,在 t = 0 和 t = 0.20 s 时的波形分别如图中实线和虚线所示.已知该波的周期 T>0.20 s .下列说法正确的是 ( )
A.
波速为 0.40 m /s
B.
波长为 0.08 m
C.
x ＝ 0.08 m 的质点在 t ＝ 0.70 s 时位于波谷
D.
x ＝ 0.08 m 的质点在 t ＝ 0.12 s 时位于波谷
E.
若此波传入另一介质中其波速变为 0.80 m /s ，则它在该介质中的波长为 0.32 m
【单选题】what experience do you have?
A.
： My major is Business Administration.
B.
： Yes. I received my Bachelor degree in English Literature.
C.
： Project Management.I was very interested in this course when I was a student.
D.
： I worked in a foreign office for one year.
E.
． I like to be paid more than 5000 yuan.
F.
I would rather work full-time.
【简答题】What was the most choking experience for her during the match?
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