气田气
参考答案：
指产自天然气气藏的纯天然气。
The manager decided to give the job to _____he believed had a strong sense of duty .
A．who
B．whom
C．whomever
D．whoever
下列组织中天冬氨酸氨基转移酶(AST)含量最高的是
A．心肌B．肾脏C．肝脏D．脾脏E．肺
