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【判断题】
两个弯矩图的叠加不是指图形的简单拼合，而是指两图对应的弯矩纵坐标叠加。A.
正确
B.
错误
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【简答题】B类MDU系列光终端用于( )组网方式,C类MDU用于( )组网方式,A类ONU用于( )组网方式。
【多选题】PLC选型时，CPU的性能指标是可编程控制器各项性能指标中最重要的，CPU主要的性能指标有（）。
A.
主频、工作电压
B.
内存总线速度
C.
高速缓存
D.
协处理器、动态处理
【多选题】PLC选型时，CPU的性能指标是可编程控制器各项性能指标中最重要的，CPU主要的性能指标主要有哪些？
A.
主频、工作电压。
B.
内存总线速度。
C.
高速缓存。
D.
协处理器、动态处理。
【单选题】In Paragraph 2, the word 'athlete' means ______.
A.
people who support the games
B.
people who watch the games
C.
people who organize the games
D.
people who compete in the games
【简答题】A．People who are hurt in accidents. B．People whose faces were burned. C．People who suffer from cancer. D．People who want to be more beautiful.
【单选题】Whom are these safety- rules for?
A.
People who drive.
B.
People who ride bikes.
C.
People who walk.
【简答题】A．The people who had no hobbies in their own culture. B．The people who were not active and successful in their own culture. C．The people who had high position in their own culture. D．The people who ne...
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