β2受体激动剂首选的给药方式为
A．口服
B．吸入
C．肌肉注射
D．静脉滴入
E．直肠给药
参考答案：B
at the news that his eyes rained tears.
A．So was Tom sad
B．So sad was Tom
C．So sad Tom was
D．So Tom was sad
「高い」还可以表示价钱高。
