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【单选题】
中断供电将影响有重大政治、经济意义的用电单位的正常工作，为( )。A.
一级负荷
B.
二级负荷
C.
三级负荷
D.
一级负荷中特别重要的负荷
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举一反三
【简答题】陈鹤琴提出了三种课程编制的方法,分别是圆周法、直进法和 _____________ 。
【简答题】若R3中曲面的所有曲线均为曲率线，则它为全脐的曲面．进而，若该曲面连通，则它为球面片或平面片．(参阅引理3．1．4．)
【单选题】Choose the correct words or phrases to complete the sentences. Our expectations further affect how we feel about lines. Uncertainty magnifies the stress of waiting, ____ feedback in the form of expect...
A.
because
B.
although
C.
if
D.
while
【简答题】Complete the following sentences with the five medical terms below. causative malady infect hemophilia lymphadenopathy No one knows what triggered the vomiting syndrome, but stress is often ...
【单选题】As shown in the figure, there is a gap of depth of h/2in the tensile rod with rectangular cross-section. Compared with the complete rod without gap, the maximum stress of the one with gap is.
A.
doubled
B.
Four times
C.
Eight times
D.
Sixteen times
【简答题】Choose an appropriate word from the below given words to complete the following sentences. season weather coin value refrain province wake 1.There have been demondtrations in the stress in...
【简答题】Exercise 2 Listen again and complete the answers to the following questions. 1. What do most police departments do to help reduce the stress of the police officers? They provide several programs to he...
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