矿井采区避灾路线上均应敷设压风管路,并设置供气阀门,间隔不大于()米。
A.100
B.150
C.200
D.210
参考答案:C
-----In my view, education is the foundation of all.
-----____ . I feel exactly the same.
A.It’s up to you
B.I’m with you on that
C.Thank goodness
D.Let’s get going
更改生产批号超过药品有效期的()
A.进口药品国内销售的代理商
B.异地经营
C.经营范围
D.进口药品
E.药品集贸市场