最常见的输卵管宫外孕病灶部位在输卵管（）。
A．伞部
B．壶腹部
C．峡部
D．壶腹部和峡部相接处
E．间质部
参考答案：B
Which of the following types of companies are more likely to use the payback method to evaluate capital projects（）
A. Asian companies and private companies.
B. European companies and private companies.
C. Asian companies and larger companies.
第一位女词人，亦称“一代词宗”是谁？
