单项选择题

Chinese meteorologists on Wednesday said the development of China's own climate system model was ______ to its national security strategy.

A．crucial
B．inventive
C．innovative
D．systematic
<上一题 目录 下一题>
热门 试题

单项选择题
In Nigeria, rules have been handed down orally from generation to generation and now form the country's ______ law.
A．traditional
B．conventional
C．customary
D．conservative
单项选择题
She ______ a strong and positive influence over her friends.
A．draws
B．exerts
C．ensures
D．expends
相关试题