什么导致人际关系的复杂和人们对它的困惑呢？

分枝杆菌萋一尼抗酸染色阳性结果是()

A．菌体呈蓝色

B．菌体呈红色

C．菌体呈绿色

D．菌体呈黄色

E．菌体呈紫色

我国有关法律规定，公司缴纳所得税后的利润，按照（）顺序分配。

A．弥补亏损、提起法定盈余公积金、提起公益金、支付股利、提起任意盈余公积金

B．弥补亏损、提起任意盈余公积金、支付股利、提起法定盈余公积金、提起公益金

C．弥补亏损、提起法定盈余公积金、提起公益金、提起任意盈余公积金、支付股利

D．弥补亏损、支付股利、提起法定盈余公积金、提起公益金、提起任意盈余公积金

第二部分：完形填空（共两节，满分30分，每小题1.5分）

The most   21   thing during my long summer holiday last year, of course is my trip __22__England. This was my first time to go abroad, so it really made me   23 .

At first，I went to Shakespeare's   24  . It was the house   25  Shakespeare was born and   26  his early years.   27  sitting room, hallway, bedrooms, and kitchen were furnished (布置) in sixteenth-century    28  . I also went to see the Shakespeare Exhibition. It showed Shakespeare's life and career in both Stratford and London.

I really enjoyed this nice trip to England,   29    I learnt a lot. I'm very happy that I could visit such an interesting   30   . I want to go there again in the future.

21. A. unforgettable     B. unexpected       C. fashionable       D. famous

22. A. at                  B. for              C. on                D. to

23. A. excited             B. disappointed    C. exciting             D. disappointing

24. A. school            B. birthplace       C. room               D. home

25. A. who               B. that              C. when             D. where

26.A. paid                 B. spent             C. cost              D. took

27.A. It's                  B. Its                C. It had                      D. It was

28. A. style               B. site               C. shape                     D. shade

29. A. for which           B. which              C. from which        D. in which

30. A. place              B. town              C. country            D. summer

易诺熔接机更改加热时间应该进那个菜单（）

A.维护菜单

B.加热模式

C.系统信息

D.熔接模式

海胆精子在穿过卵胶膜发生哪些变化？产生这些变化的作用机制是什么？