单项选择题

The database was supplied by a scientific research ().

A、party
B、institute
C、people
D、society
<上一题 目录 下一题>
热门 试题

单项选择题
They like to spend money () exciting holidays.
A、in
B、at
C、on
D、with
单项选择题
How many ways of communication?
A、Six
B、Three
C、Two
D、Five
相关试题