根尖孔破坏的感染渗湿根管封药用
A．木馏油B．樟脑酚C．碘仿糊剂D．甲醛甲酚E．氢氧化钙
参考答案：C
Mr. Green has never smoked any more since his wife _____ him to give it up.
A．persuaded
B．wanted
C．advised
D．suggested
（）不是原油中断现象。
A、脱前原油分支流量降低
B、初馏塔液位下降
C、原油进装置温度高高报
D、脱前原油温度上升
