据资料分析，某厂生产的一批砖，其抗断强度X～N(32．5，1．21) ，今从这批砖中随机地抽取了 9 块，测得抗断强度 ( 单位： kg／cm2)的平均值为 31.12 ，问这批砖的抗断强度是否合格
暂无解析
妇女在经期、孕期、产期、哺乳期受特殊保护，任何单位不得以结婚、怀孕、产假、哺乳等为由，辞退女职工或者单方解除劳动合同。这体现了妇女享有与男子平等的()。
My train arrive in New York at eight o'clock tonight. The plane I would like to take from there ______by then.
It is the news ____ most parents of the hope that there is a safe and socially approved road to a kind of life they themselves have not had, but their children can.
We need a more capable leader, ______ with strong will and as well as good humour.
人体在晚上分泌的镇痛荷尔蒙比白天多，因此，在晚上进行外科手术的病人只需要较少的麻醉剂。既然较大量的麻醉剂对病人的风险更大，那么，如果经常在晚上做手术，手术的风险就可能降低了。下列哪项为真，最能反驳上述结论?
