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【多选题】
下列有关ROM、RAM、CMOS的说法,错误的是( )A.
RAM中的数据在断电之后也不会丢失
B.
CMOS中的数据不可读写
C.
EPROM中的数据可用激光擦除
D.
CMOS中存储了微机系统的时钟信息和硬件的配置信息
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A.
17th
B.
18th
C.
19th
D.
20th
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【单选题】It was not until yesterday the business negotiation finally came to a successful end.
A.
when
B.
that
C.
since
D.
after
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A.
that
B.
who
C.
which
D.
whom
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