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【单选题】
在机床电气电路中起保护作用不正确的是( )A.
熔断器
B.
空气开关
C.
地线
D.
继电器
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反馈参考答案：
举一反三
【简答题】汽车变速器按传动比变化方式的不同可分为哪几类?
【单选题】Consider a 2-by-5 integer array t, write a statement that totals the elements of the fourth column of t.
A.
sum = t[ 0 ][ 3 ] + t[ 1 ][ 3 ];
B.
sum = t[4 ][ 0] + t[ 4 ][ 1]+t[4][2]+t[4][3];
C.
sum = t[3][ 0] + t[ 3 ][ 1]+t[3][2]+t[3][3];
D.
sum = t[ 0 ][ 4 ] + t[ 1 ][ 4 ];
【单选题】According to the fourth paragraph, Bevans was found guilty because he ______.
A.
obeyed illegal orders
B.
was accused of murder
C.
disobeyed the superior orders
D.
offended against the law of war
【单选题】What does the man think of the exam?
A.
He's afraid to take exams.
B.
He only took the fourth exam.
C.
He didn't get the highest score on one exam.
【单选题】Peter had difficulty swimming across the lake, but he finally succeeded on his fourth ______.
A.
attempt
B.
process
C.
display
D.
instance
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