比较是研究历史、学习历史的主要方法，它能使我们更全面地了解历史的前因后果。阅读下列材

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       Here is a family.

       Betty and Henry are parents of Emma, Anna and Dave. Anna is single(单身的)．Emma is married(已婚的). Her husband's(丈夫的)name is Paul.  Emma and Paul are parents of Tommy and Jane.  

Tommy is their son and Jane is their daughter. Dave is also married. His wife's(妻子的)name is Sonia. 

 Sonia and Dave are parents of Sally and Tim.  Sally is their daughter, and Tim is their son.

       Tommy, Jane, Sally and Tim are cousins.  They are also the grandchildren of Betty and Henry.

根据文章内容完成下面的家谱

1.               2.               3.               4.                5.               6.           

子宫内膜癌药物治疗用（）。

A.孕激素

B.他莫西芬

C.化学药物

D.促性腺激素释放激素

E.雄激素

二氧化硅

气管切开的部位一般在（）

A.第1～2气管软骨环

B.第3～5气管软骨环

C.第6～7气管软骨环

D.第8～10气管软骨环

E.低于第10气管软骨环

彼特拉克的《歌集》，主要以（）形式著称。