断路器交接试验,真空断路器分闸反弹幅度不应超过额定开距的()%。
A.10
B.20
C.30
D.40
参考答案:B
下列()的清查宜采用发函询证的方法。
A.应收账款
B.应付账款
C.存货
D.预付账款
–---I wonder __________. –--Zebras.
A.what do they call these animals
B.how they call these animals
C.what they call these animals
D.how do they call these animals