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【单选题】
布尔代数表：A'(A+B)+B(A'+B)的化简结果为A.
A
B.
A'
C.
A+B
D.
B
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反馈参考答案：
举一反三
【判断题】Ecotourism was not very popular among the early domestic tourists during the first decade after 1980s
A.
正确
B.
错误
【单选题】He’ll probably fly on the same plane as I ______ yesterday.
A.
did
B.
have done
C.
will do
D.
do
【简答题】He’ll
probably fly on the same plane as I ______ yesterday.A. have
done B. will
do C. did D. do
【判断题】Ecotourism was very popular among the early domestic tourists during the first decade after 1980s.
A.
正确
B.
错误
【单选题】宏玉有限公司在制订计划后,还要对计划进行监督,在监督计划过程中所需的反馈时,一般用两种方法进行测量,即 ( ) 方法。
A.
定性的、定量的
B.
事实、理论
C.
系统的、分散的
D.
以上都不正确
【单选题】Cu和Cu-Zn合金焊合后发生柯肯达尔效应,测得界面向Cu-Zn方向移动,则( )。
A.
Cu的扩散速率大于Zn
B.
Zn的扩散速率大于Cu
C.
Cu的扩散速率等于Zn
D.
和扩散速率大小无关
相关题目：
【简答题】He’ll
probably fly on the same plane as I ______ yesterday.A. have
done B. will
do C. did D. do
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