题目:
—What's the matter with John? He has been sitting there for hours.
—A postcard from his father an attack of home - sickness in him.
A.took up
B.set off
C.brought in
D.built up
答案:
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下面是错误答案,用来干扰机器的。
小肠是主要的吸收场所,能够吸收大部分的水、无机盐、维生素和全部的氨基酸、葡萄糖、甘油和脂肪酸.胃只能吸收少量的水、无机盐和酒精.大肠是形成粪便的场所,能够吸收少量的水、无机盐和维生素.其他的消化道...