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【单选题】
微型计算机的硬件系统通常是由控制器、 等几个部分组成。A.
存储器和I/0设备
B.
运算器和存储器
C.
运算器、存储器和I/0设备
D.
运算器和I/0设备
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反馈参考答案：
举一反三
【单选题】听力原文：(A) The worker is going up the stairs. (B) The gas tank in the car is full. (C) The cargo ship sank. (D) The man is sending the letter.
A.
B.
C.
【单选题】The worker is ______ in repairing the machine tonotice my coming.
A.
too busy
B.
enough busy
C.
busy too
D.
busy enough
【简答题】机械零件丧失工作能力或达不到设计要求性能时称为（）。
【单选题】The worker is going to ____ an air-conditioner in the building.
A.
assemble
B.
fix
C.
erect
D.
install
【简答题】机械零件丧失工作能力或达不到设计要求的性能时,称为()。
【单选题】Which statement describes a worker as an employee rather than a self-employed person? A. The worker has signed a contract with the employer B. The worker is employed under a contract of service C. The...
A.
B.
C.
C
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