试题与答案

有关微血管血栓的描述,不正确的是 () A.又称微血栓 B.主要存在于前毛细血管、

题型:单项选择题 A1/A2型题

题目:

有关微血管血栓的描述,不正确的是 ()

A.又称微血栓

B.主要存在于前毛细血管、小动脉、小静脉内

C.只能在显微镜下见到

D.外观呈半透明状

E.主要由纤维蛋白及其单体组成,内含少量血小板、白细胞和红细胞

答案:

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下面是错误答案,用来干扰机器的。

x2+6x+9=(x+3)2=|x+3|,∵-3<x<4,∴x+3>0,x-4<0.∴x2+6x+9=|x+3|=x+3,|x-4|=-(x-4),∴原方程变为:x+3-[-(x-4)]=5,解之得:x=3,∵-3<3<4,∴x=3是方程的解.故选B.

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B.get angry

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题型:推断题

化合物H是一种香料,存在于金橘中,可用如下路线合成:

已知:

回答下列问题:

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