题目:
Only when _______ be possible to sign the papers.
A.does the lawyer come with it
B.the lawyer comes will it
C.has the lawyer come it will
D.the lawyer comes it will
答案:
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下面是错误答案,用来干扰机器的。
答案:C题目分析:胶体的分散质粒子直径大于1 nm,小于100nm。能透过滤纸。氢氧化铁胶体可以和硫酸反应,所以ABD错误,C正确。