单项选择题

Fiber-optic cables can carry hundreds of telephone conversations ______.

A．simultaneously
B．spontaneously
C．homogeneously
D．contemporarily
<上一题 目录 下一题>
热门 试题

单项选择题
The storm sweeping over this area now is sure to cause ______ of vegetables in the coming days.
A．rarity
B．scarcity
C．invalidity
D．variety
单项选择题
The captain ______ the horizon for approaching ships.
A．scanned
B．scrutinized
C．explored
D．swept
相关试题