可引起出血性膀胱炎的毒物主要为（）
A.5-氯-邻甲苯胺
B.联苯胺
C.三硝基甲苯
D.二硝基苯
E.对苯二胺
参考答案：A
—What does this modern-day dinosaur look like?
—The tongue of this animal can be extended _____ of its body.
A．more than twice the length
B．twice more than the length
C．more than the length twice
D．more twice than the length
离心泵的功率消耗随流量增加而增大。(设备基本知识)
