单项选择题

Glass-fiber cables can carry hundreds of telephone conversations（）

A. spontaneously
B.simultaneously
C. immediately
D. immiscibly

<上一题目录下一题>

热门试题

单项选择题

It is well-known that the retired workers in our country are（）free medical care.

A. entitled to
B. involved in
C. associated with
D. assigned to

单项选择题

Now many manufacturers build their business reputations by enclosing ______ in the new products in case of damage in shipment or by incorrect operation.

A. categories
B. accessories
C. analogies
D. observatories

相关试题