题目内容

可擦除ROM在数据被擦除后,存储单元中的值为0。

A. 对
B. 错

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因ROM是只读存储器,向它内部写数据是不可能的。

A. 对
B. 错

They talked for about an hour of things and persons _____ they remembered in the factory.

A. which
B. that
C. who
D. whom

We are going to spend this Spring Festival in Beijing, _____ live our grandparents and some relatives.

A. which
B. that
C. who
D. where

There are many areas in the world _____ lack experienced doctors.

A. where
B. in which
C. which
D. what

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