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【多选题】
ZZK-12型中置式开关柜配VSl型真空断路器，断路器合闸操作后，合闸弹簧不能贮能，可能的原因是（）故障A.
储能电气回路
B.
电动机
C.
硅整流器或者微动开关
D.
机构的合闸传动和保持部分
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【简答题】HTML 的最新版本 是( )
【单选题】The president was on a tight ______ so he didn’t visit the Forbiddern City entirely.
A.
budget
B.
program
C.
schedule
D.
deadline
【简答题】HTML语言的最新版本是
【单选题】They didn’t know who it was that had ______ to the public when the president would set out for that country.
A.
stayed away
B.
given away
C.
gone away
D.
run away
【简答题】At the _1_, the sixty-year-old company president told the forty-eight-year-old _2_ that the fifty-one-year-old _3_ had meant much to the company and would be missed and would be hard to _4_. The widow...
【简答题】感觉阈限与感受性的大小的关系是（ ）。
【单选题】At college, Barack Obama didn’t know that he the first black president of the United States of America.
A.
was to become
B.
becomes
C.
is to become
D.
became
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