青霉素过敏者可用何种药物抢救()
A、盐酸肾上腺素
B、洛贝林
C、尼可刹米
D、以上皆可
参考答案:A
The output of the gold mine is now four times _____ it was before liberation.
A.that
B.what
C.which
D.than
员工上岗时工作服()。
A.无明显油渍
B.无污迹
C.无皱折
D.无破损