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【多选题】
使用万用表时,正确的操作是( )。
A.
使用前要机械调零
B.
在进行高压测量时,必须注意人体和仪表的安全,严禁带电切换开关
C.
使用万用表测量时,必须正确选择参数档和量程档
D.
测量结束后,转换开关置于空档或电阻最高档
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参考答案:
举一反三
【单选题】幼儿在下列消化系统的功能中较成人为强的是:
A.
胃的消化功能
B.
肠的吸收功能
C.
肝的解毒功能
D.
D: 以上都不是
【单选题】Now many people_____higher degrees probably finish up nowhere when they try to get a highly-paid
A.
16. Now many people_____higher degrees probably finish up nowhere when they try to get a highly-paid job. A.with
B.
in
C.
for
D.
At
【单选题】幼儿在下列消化系统的功能中较成人强的是:( )
A.
胃的消化功能
B.
肠的吸收功能
C.
肝的解毒功能
D.
都是
【简答题】Recently, many people have begun to try a new way of doing shopping through the Internet. They are very interested in it. Why is itbecoming more and more popular now? There are some reasons. First, mo...
【单选题】幼儿在下列消化系统的功能中较成人强的是(   )。
A.
胃的消化功能
B.
肠的吸收功能
C.
肝的解毒功能
D.
都不是
【单选题】幼儿在下列消化系统的功能中较成人为强的是:
A.
胃的消化功能
B.
肠的吸收功能
C.
肝的解毒功能
D.
以上都不是
【单选题】Why is GDP better than GNP?
A.
Because economic experts generally approve GDP.
B.
Because most industrial countries used GDP.
C.
Because GDP provides a truer measure of a country's economy.
D.
Because GDP is easier to be understood.
【简答题】Experts generally agree ...
【简答题】阅读理解. Recently, many people have begun to try a new way of doing shopping through the Internet. They are very interested in it. Why is it becoming more and more popular now? There are some reasons. Fi...
【单选题】Experts generally agree that diet has an important bearing on one's health.
A.
result
B.
factor
C.
cause
D.
influence
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