充油型矿用防爆电气设备的标志是()。
A.d
B.i
C.o
D.h
参考答案:C
The fireman told us the troubles they had ________ the fire ________.
A.getting; controlled
B.got; controlled
C.got; controlled
D.getting; to control
使用韦氏儿童智力测验时,分测验的粗分应该转化为平均数为10、标准差为()的量表分。
A.1
B.2
C.4
D.3