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现有8名奥运会志愿者,其中志愿者A1、A2、A3通晓英语,B1、B2、B3通晓俄语,C1、C2通晓韩语。从中选出通晓英语、俄语和韩语的志愿者各1名,组成一个小组。 (1)求A1被选中的概率; (2)求B1和C1不全被选中的概率。
主要作用在肾髓袢升支粗段的髓质部和皮质部的利尿药是( )。
转氨酶的辅酶是吡哆醛。
肺结核病理特点()
下列不是目前我国公布的劳动卫生标准的是( )。
域名服务器上存放着Internet主机的()
历史法学派
个人二手房屋按揭贷款中,所购二手房屋为住房的,贷款期限不超过()年。
在无能量输入的流动中,理想流体总水头线沿程变化()。
房地产经纪公司在建立风险识别系统时,要遵循()原则。
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