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【单选题】
调查3-6岁幼儿的生长发育状况时,应采用( )为一组A.
1个月
B.
2个月
C.
3个月
D.
6个月
E.
一年
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举一反三
【简答题】unit 3 After so much change we now need a period of .A. stability
【单选题】unit 9-3.mp3: The article is_______, so it will bring more profits.
A.
In good supply
B.
In great demand
C.
Both A and B
【单选题】Unit4-3 But so far there ___________ no true water wars.
A.
has been
B.
have been
C.
is
D.
are
【单选题】... my preference is for greater involvement from her daddy so that my daughter understands a strong parental unit.
A.
... I prefer to be more involved with her daddy so that my daughter understands a strong parental unit.
B.
... I prefer my husband to be more involved with his daughter so that she understands a strong parental unit.
【简答题】JavaDoc注释的写法是 。
【单选题】As the tax on a good increases from $1 per unit to $2 per unit to $3 per unit and so on, the
A.
tax revenue increases at first, but it eventually peaks and then decreases.
B.
deadweight loss increases at first, but it eventually peaks and then decreases.
C.
tax revenue always increases, and the deadweight loss always increases.
D.
tax revenue always decreases, and the deadweight loss always increases.
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