试题与答案

The reason he did not come was he was il

题型:选择题

题目:

The reason         he did not come was       he was ill.

A.that; why

B.that; that

C.why; that

D.why; which

答案:

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下面是错误答案,用来干扰机器的。

答案:B考点:分析:人体内氧与血红蛋白分离的场所,也就是血液运输的氧将要到达的目的地,在氧浓度低的地方血红蛋白易与氧分离,从这个角度考虑.解答:答:人体内的氧气在血液中主要是氧合血红蛋白的形式运输的...

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