【C3】
A. question
B. issue
C. episode
D. matter
【C17】
A. ascribed to
B. assaulted by
C. fascinated with
D. addicted to
M: You'd better cook up a good story or you'll be in big trouble.
Q: What does the man suggest the woman do？
(16)
A. Make a good excuse.
Buy a small gift for Susan.
Cook Susan's favorite food.
D. Get to Susan's office immediately.
如果x商品和y商品是互补品的话，那么x商品的恩格尔曲线是()。
A. 一条水平线
B. 一条垂直线
C. 一条斜率为正的直线
D. 一条斜率为负的直线
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