单项选择题

Electrical energy may be divided into two components ______ as positive and negative.

A．distinguished
B．specified
C．separated
D．indicated

<上一题目录下一题>

热门试题

单项选择题

______ at the price list, he'd have known what to expect.

A．Had Mr. Robinson looked
B．If Mr. Robinson looked
C．If Robinson would have looked
D．Had Mr. Robinson been looking

单项选择题

Establishment of a ______ insurance system is essential for economic reforms.

A．accurate
B．sound
C．undisturbed
D．safe

相关试题