单项选择题

The development of the transistor and integrated circuits revolutionized the electronics industry by allowing components to be packaged more (densely).

A．compactly
B．inexpensively
C．quickly
D．carefully
<上一题 目录 下一题>
热门 试题

单项选择题
How many radios will your factory (turn out) this year
A．manufacture
B．destroy
C．export
D．import
单项选择题
The mail was (delayed) for a week because of the flood.
A．held down
B．held in
C．held off
D．held on
相关试题