单项选择题

It's now possible to record the existence of many stars which are ______ invisible.

A．hardly
B．heavily
C．permanently
D．thereby
<上一题 目录 下一题>
热门 试题

单项选择题
In his speech the Minister of Industry said that industrial exports went up for five ______ years.
A．successful
B．successive
C．continual
D．continuous
单项选择题
Psychologists have found that ______ disciplinary measures do not always make a child better behaved.
A．stiff
B．rough
C．stern
D．stout
相关试题