射孔枪在井下未引爆时,必须先断开点火线路,再提出井口,然后拆除连接的雷管,检查原因。()
参考答案:对
In this university a medal with five thousand dollars _____ achieved success in science and technology every
two years. [ ]
A. is given to no matter who
B. is given to whoever
C. are given to anyone who
D. gives to whomever
商家在对账时,由于对对账单金额有疑义,点击不同意的对账单,将作废,等待重新生成新的对账单