不得使用昔萘洛尔的症状有
A．支气管哮喘
B．重度房室传导阻滞
C．心律失常
D．心功能不全
E．窦性心动过缓
参考答案：A,B,D,E
—Don’t you think there are too many cars in our city?
—I really think so. If there are ___ people driving, there will be ___ pollution.[ ]
A. less; less
B. fewer; fewer
C. less; fewer
D. fewer; less
消防车底盘厂定最大总质量是指（）规定的原车型的厂定最大总质量。
A.车制造厂
B.车修理厂
C.车改装厂
D.车运管处
