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【判断题】
中国是以黄河、长江流域作为文明发展的核心地区，呈现一统性发展态势。()A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Sometimes it is not so easy to tell the right the wrong.
A.
off
B.
for
C.
with
D.
from
【简答题】取葡萄糖2g,加水溶解后,依法检查铁盐,如显色与标准溶液3mL(10ug Fe/mL)比较,不得更深,求铁盐限量。(要求拍照上传计算过程)
【单选题】It is not so easy to take the money out of a piggy bank as to put the money in.
A.
真
B.
False
【单选题】It can be easy to _______ such bad habits as smoking and heavy drinking, but it is not so easy to quit.
A.
slide into
B.
turn into
C.
put into
D.
draft into
【单选题】取葡萄糖2g,加水溶解后,依法检查铁盐,如显色与标准溶液3ml(10μFe/ml)比较,不得更深,铁盐限量为 ( )
A.
1.0E-4
B.
1.0E-5
C.
5.0E-6
D.
1.5E-5
【单选题】It is not so easy to make clear the shifting ______ within a large family.
A.
coincidences
B.
alliances
C.
harmonies
D.
uniforms
【简答题】It is not so easy to make a nutritious breakfast.
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