干度等于干蒸汽的容积除以湿蒸汽的容积。
参考答案：错
— Where’s Tom? He is wanted on the phone.
— Sorry, he ______ to the library.
A．goes
B．has gone
C．will go
D．was going
人的大脑主管语言的区域比黑猩猩大脑主管语言的区域复杂。[ ]
