下列不属于多次人工流产的坏处的是（）
A.增加生殖道感染的风险
B.可使女性患胃癌的风险增加
C.可激发宫腔粘连
D.可引起女性不孕
参考答案：B
Directions:
Study the following set of pictures carefully and write an essay in which you should
1) describe the pictures briefly,
2) interpret their intended meanings, and
3) point out their implications in our life. You should write about 160--200 words neatly on ANSWER SHEET 2.
垄断利润是（）
A、资本家获得的超额利润
B、垄断组织获得的平均利润
C、垄断组织获得的一般利润
D、垄断组织获得的超过平均利润的高额利润
