the population of China is the largest i

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问题选择题

the population of China is the largest in the world.

A．It is well known that

B．As is well known

C．Which is well known

D．That is well known

答案

答案：A

选择题

Mr Robert is _____ our teacher. He is our friend. [ ]

A. other than

B. rather than

C. more than

D. less than

单项选择题

1岁男婴，因面色苍黄、毛发稀枯3个月。血常规示Hb89g/L，中性粒细胞变大并有分叶过多。骨髓象示：幼红细胞巨幼变。为了明确诊断，首先应选择的检查是()。

A．血清VitB₆测定

B．血清VitB₁₂测定

C．血清计酸测定

D．血清铁蛋白测定

E．血清铁测定