治寒痰阻滞、胸阳不振所致胸痹证，宜首选
A．桂枝
B．薤白
C．檀香
D．佛手
参考答案：B
使用二氧化碳灭火器时有哪些注意事项？
The hotel wasn’t particularly good. But I _________ in many worse hotels.
A．was staying
B．stayed
C．would stay
D．had stayed
