用兆欧表测量设备绝缘时,手柄的转速应接近()r/min。
A、100
B、120
C、150
参考答案:B
Yesterday ___ 8-year-old boy fell into the river.____ boy was saved by ______policeman.
A.a ; A ; a
B.An ; The ; a
C.an ; The; the
D.a ; A; the
下列程序的输出结果为( )。# include < iostream.h>void main( ){char * a[ ]={"hello","the","world"};char * * pa=a;pa ++;cout << * pa <<endl;}
A.hello
B.the
C.world
D.hellotheworld