资源严重减少的主要常用野生药材是()
A.蔓荆子
B.莱菔子
C.马鹿鹿茸
D.梅花鹿鹿茸
E.天麻
参考答案:A
The quiet girl has ________ since she became a sales clerk.
A.come to light
B.come to herself
C.come to an end
D.come to life
佩戴自救器撤离时,若感到吸气不足,应()缓解一下。
A.放慢脚步
B.取下鼻夹
C.狂奔