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【单选题】
下列设备中不能与PLC外设通信接口相连接的为（ ）。A.
编程器
B.
I/O 扩展机
C.
打印机
D.
图形监控系统
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【简答题】Sandy made quite a number of(apply) _________for a management position but failed every time.
【单选题】For quite a number of children, their teachers’ advice is more acceptable than ____ of their parents.
A.
one
B.
that
C.
which
D.
what
【简答题】This clearly shows that crops and weeds have quite a number of ________ in common. A) traits B) traces C) tracks D) trails
【单选题】I hear a number of workers in the factory_____out of work. __Yes, and the number _____quite huge.
A.
are; is
B.
is; are
C.
is; is
D.
are; are
【单选题】I hear a number of workers in the factory _____ out of work and the number of them ______ quite large .
A.
are , is
B.
is , are
C.
is , is
D.
are, are
【简答题】San Francisco has many museums. You can visit one and learn something new. We have art, science, history and other special museums. Some museums are open every day. Some are only open on certain days....
【单选题】.For quite a number of pupils, their teacher’s advice is more important than _____of their parents’.
A.
one
B.
that
C.
which
D.
what
【简答题】There are few experiences quite pleasant as getting a good idea．You've had a problem, you've thought about it till you were tired; you've forgotten it and perhaps slept on it, and then flash! When you...
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