计算:-12+(-1)3÷(-1)-1×(-1)3=[ ]
A、-1
B、1
C、-3
D、3
答案:B
What do you think _____ to make herself _____ ?
[ ]
A. Kate will say, believe
B. will Kate say, believed
C. Kate will say, believed
D. will Kate say, believe
在绝缘法兰()上,测量管道对地电位,能判断绝缘法兰是否漏电。
A.两侧管段
B.内侧管段
C.外侧管段
D.任意侧管段