药品零售企业购进(),应进行药品质量审核,审核合格后方可经营。 ["首营品种","首营企业","外资企业","进口品种"]
顶推法在主梁顶推过程中,梁体内力不变。
()是班主任工作的必然趋势。 ["教育质量","转化差生","以生为本"]
A shroud is(). ["a light sail","a topmast stay","a sheet","standing rigging"]
活动支座可分为()。 ["单向活动支座","多向活动支座","普通支座","复杂支座"]
依据华电集团《电力安全工作规程》(热力和机械部分)对气瓶的搬运有何一般规定?