（）是一种自动开启的阀门，用于自动接通和切断制冷系统的管路。
A.电磁阀
B.截止阀
C.止回阀
D.热力膨胀阀
参考答案：A
下列哪一项不是生物多样性的内涵？
A．生物物种的多样性
B．生物遗传的多样性
C．生态系统的多样性
D．生物分布范围的多样性
It is the news most parents of the hope that there is a safe and socially approved
road to a kind of life they themselves have not had, but their children can.
A．that deprive
B．that it deprives
C．that deprives
D．when it deprives
