煤矿生产能力达到1000万吨以上对技术人员有何要求?
参考答案:
达到1000万吨的生产矿井(年)技术和管理人员不少于150人。
把一根钢管截成3段需14.4分钟,截成6段需28.8分钟.______.
The new castle being built for fun will be _____ the present one。
A.three times more than size of
B.as three times big as
C.bigger three times than
D.three times as big as