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法定解除条件包括()。
在事故的发生和发展过程中,两类危险源的关系是()。
对离子交换法产生干扰的是()
社会救助的对象是容易遭遇生活困境的()。
被称为“交响乐之父”的作曲家是()。
艾滋病病毒藏匿何处?
气态NH 3在常温高压条件下的催化分解反应2NH 3=N 2+3H 2可用于处理含NH 3废气。现有一NH 3和CH 4含量分别为95%和5%的气体,通过NH 3催化分解反应器后气体中NH 3的含量减少为3%,试计算NH 3的转化率和反应器出口处N 2、H 2和CH 4的摩尔分数。(CH 4为惰性组分,不参与反应)
依据《特种设备安全监察条例》的规定,被依法撤销许可的,自撤销之日起( )年内,特种设备监督管理部门不予受理其新的行政许可。
N1受体阻断剂是()。
汇票按照出票人的不同,可以分为()和()。
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