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问题 单项选择题

下列关于中期妊娠水囊引产错误的是（）

A.机械刺激促进前列腺素合成与释放

B.禁用于瘢痕子宫

C.适用于利凡诺引产禁忌证

D.感染率较其他方法高

E.应被广泛应用

答案

参考答案：E

填空题
已知a+
1
a
=1，则代数式(a+
1
a
)2012+a+
1
a
-5的值是______．
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填空题

Questions 9-13


·You will hear a passage about "Surviving Cultural Shock".
·For questions 9-13, choose from the list A-F the five stages of cultural shock.
·Use the letters only once. There is one extra letter, which you do not need to use.
9. Stage 1 ______
10. Stage 2 ______
11. Stage 3 ______
12. Stage 4 ______
13. Stage 5 ______
  • A. The Re-entry
  • B. The Rejection
  • C. The Acceptance
  • D. The Honeymoon
  • E. The Regression
  • F. The Non-Party
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