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【判断题】
晶闸管不用进行散热和冷却。A.
正确
B.
错误
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举一反三
【单选题】There are some new books in the reading-room. They are ____ books.
A.
child
B.
childrens'
C.
children
D.
children's
【单选题】There are some new _____ in our hospital.
A.
doctors
B.
midwives
C.
teachers
D.
assistants
【单选题】There are some new books in the school library.They are books.
A.
child
B.
childrens’
C.
children
D.
children’s
【单选题】There are some new books in the school library. They are ____ books.
A.
child
B.
childrens'
C.
children
D.
children'es
【简答题】已知某机采用微程序控制方式,控存容量为512*48位。微程序可在整个控存中实现转移的条件有4个,微指令采用水平型格式,后继微指令地址采用断定方式。请问:(1)微指令的三个字段分别应为多少位?(2)画出对应这种微指令格式的微程序控制器逻辑框图。
【单选题】There are some new books in the library. They are ______books.
A.
children
B.
children's
C.
childrens'
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