预测预报是对有()的区域进行()和(),为防治措施提供指导
参考答案:冲击地压危险;监测;预报
The bike me three hundred yuan last Sunday. [ ]
A.paid
B.spent
C.took
D.cost
肺炎支原体感染首选哪一类抗生素()
A.青霉素类
B.头孢类
C.大环内酯类
D.奎诺酮类
E.四环素类