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【简答题】
2 What purpose will it serve?
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反馈参考答案：
举一反三
【单选题】I f a country' s savin g rat e increases , the n i n th e lon g run
A.
a productivit y i s highe r bu t rea l GD P pe r perso n i s no t higher.
B.
rea l GD P pe r perso n i s highe r bu t productivit y i s no t higher.
C.
productivit y an d rea l GD P pe r perso n ar e bot h higher.
D.
neithe r productivit y no r rea l GD P pe r perso n i s higher.
【单选题】照片影像密度、对比度、锐利度的关系，错误的是
A.
密度是对比度、锐利度的基础
B.
对比度可随密度的改变而改变
C.
锐利度与对比度无直接关系
D.
观片灯的亮度影响照片对比度的视觉效果
E.
高密度下对比度小的物体影像难以辨认
【单选题】They won't buy new clothes because they______money to buy a color TV set.
A.
save
B.
are saving
C.
has saved
D.
were saving
【简答题】————(没想到,出乎意料的),Savin found one of the dogs looked like his Silas.
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