关于兴奋药的危害
用量大时会出现中毒症状，严重时会因呼吸麻痹而死亡的是
A．普萘洛尔B．可卡因C．呋塞米D．苯丙酸诺龙E．红细胞生成素
参考答案：B
用所给词的适当形式填空。
1. My uncle often ____________ (watch) TV after supper.
2. Tom lives on the ____________ (five) floor.
3. She likes ____________ (sing) and dancing.
4. She ____________ (go) to work by bus every morning.
5. A salesperson can ____________ (be) either a man or a woman.
变压器空载试验的目的是什么？
