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【单选题】
酿造用粮食淀粉酸水解法检验的原理是氧化还原反应，下面说明不正确的是（）。A.
酒石酸钾钠铜中的二价铜是还原剂
B.
葡萄糖是还原剂
C.
次甲基兰还原型呈无色
D.
次甲基兰呈兰色时为氧化剂
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举一反三
【简答题】风疹的主要临床特征是（ ）|幼儿急疹的主要临床特征是（ ）A. 发热3～5天，热退疹出B. 口腔黏膜斑C. 环口苍白圈D. 丘疹、疱疹、结痂同时存在E. 耳后、枕部淋巴结肿大
【单选题】Expert power is
A.
accorded to those who are seen as having achieved some level of command and mastery of specific info
B.
derived from the ability to allocate, dispense, or withhold resources.
C.
derived from occupying a particular job, office, or position in an organizational hierarchy.
D.
derived from the ability to assemble and organize information to support the desired position, argum
E.
All of the above are characteristics of expert power.
【单选题】一般继电器的吸合时间与释放时间为 ,快速继电器为0.005 ~0.05s,它们的大小影响着继电器的允许操作频率。
A.
0.01~0.05s
B.
0.05~0.15s
C.
0.15~0.35s
D.
0.35~0.55s
【简答题】一般时间继电器的吸合时间与释放时间为( )。
【单选题】Lily got up at 6 o'clock _____, but she realized it was Sunday as soon as she prepared her school bag. [ ]
A.
as possible
B.
as usual
C.
at present
D.
at last
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