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【单选题】
储能电容器通过充电，把（）以电场能的形式存储起来。A.
点火能量
B.
高压电
C.
低压电
D.
交流电
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举一反三
【单选题】The is between you and me. --- I promise. I won’t tell others ______you say I can.
A.
unless
B.
or
C.
since
D.
and
【简答题】某点附近有2台机器,当机器都未工作时,该点的声压级为55dB(A),若两台机器同时该工作,该点的声压级为65(A);若一台机器工作,则该点的声压级只有60dB(A),试求另一台机器单独工作,该点的声压级是多少?
【简答题】“ Tear ’ em apart! ” “ Kill the fool! ” “ Murder the referee ( 裁判 )! ” There are common remarks one may hear at various sporting s. At the time they are made, they may seem innocent enough. But l...
【单选题】If I were you, I him about the truth of the accident. [ ]
A.
will tell
B.
won't tell
C.
wouldn't tell
【单选题】I had to tell you that _____ you do well in every subject, you won't be elected the monitor. [ ]
A.
unless
B.
if
C.
because
D.
when
【简答题】某点附近有2台机器,当机器都未工作时该点的声压级为50dB;同时工作时,该点的声压级为60dB;若其中一台工作时,则该点的声压级为55dB。试求另一台机器单独工作时该点的声压级为多少?
【简答题】Questions 57 to 61 are based on the following passage. “ Tear ’ em apart! ” “ Kill the fool! ” “ Murder the referee ( 裁判 )! ” There are common remarks one may hear at various sporting s. At the t...
【多选题】进入公共场所,应注意观察哪些部位,以便于发生火灾时能够紧急逃生( ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
进出口位置
B.
安全出口 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
疏散楼梯
D.
电梯
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