主要用于支气管炎初期;作体液酸化剂,用于有机碱中毒时,加速药物或毒物的排出的是()
A.鞣酸蛋白
B.硫酸镁
C.铋制剂
D.氯化铵
E.碘化钾
参考答案:D
We had _______ 8-day holiday during this National holidays, but some of us felt unhappy because of _________heavy traffic on the highways.
A.an, the
B.a, the
C.a, a
D.an, a
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