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【单选题】
正常亮度下,人眼的临界闪烁频率A.
约等于50Hz
B.
大于等于100Hz
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【简答题】填写单词：Would you mind ________ the window, please? It is too hot here.(2016孝感市中考英语试题及答案)
【多选题】对疑似流脑患者留取标本进行病原学检查，下列哪些正确
A.
在使用抗生紊之前采集标本
B.
立即送检
C.
血培养阳性率高于皮肤瘀点涂片或脑脊液涂片
D.
培养阳性一般要进行菌株分型和药敏试验
E.
脑膜炎球菌可从带菌者鼻咽、病人血液、脑
【简答题】A．The train will be overheated when it arrives. B．It is too hot to wait any more. C．They are going to be late in their plan again. D．They will have to schedule another dinner.
【单选题】Although the prevailing supposition has been that it is too hot for microorganisms to survive deep below the Earth s surface, some scientists argue that there are living communities of microorganisms ...
A.
The microorganisms brought up were of a species that is related to those previously known to science.
B.
No holes have been drilled into the Earth' s surface to a distance deeper than 1. 74 miles.
C.
The microorganisms did not come from surface soil that came into contact with the drilling equipment.
D.
The stratum from which the samples came has been below the surface of the Earth ever since the Earth came into existence.
E.
The temperature at the bottom of the holes drilled was not significantly hotter than that of the hottest spots on the Earth's surface.
【单选题】某公司拟发行面值为1 000元，不计复利，5年后一次还本付息，票面利率为10%的债券。已知发行时市场的利率为12%，(P/F，10%，5)=0.6209，(P/F，12%，5)=0.5674。则该公司债券的发行价格为( )元。
A.
851.1
B.
907.84
C.
931.35
D.
993.44
【简答题】甲和乙两个公司同时在2005年1月1日发行面值为l000元、票面利率为8%的5年期债券，甲公司的债券是单利计息、到期一次还本付息，乙公司的债券每年于6月30日和12月31日分别付息一次。 要求： （1）如果2008年1月1日甲公司债券市场利率为10%（复利折现），目前债券市价为1200元，计算该债券是否被市场高估； （2）若2008年1月1日乙公司债券市场利率为12%，市价为.l000元，问该资本...
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