输卵管妊娠的临床表现有哪些?

Jane was walking round the department store. She remembered how difficult __1___ was

to choose a suitable Christmas present for her father. She wished that he was as easy __2___ (please) as her mother, who was always delighted with perfume.

Besides, shopping at this time of the year was not ___3___ pleasant experience：people stepped on your feet or ___4___ (push) you with their elbows(肘部), hurrying ahead to get to a bargain.

Jane paused in front of a counter ___5___ some attractive ties were on display. “They are real silk,” the assistant tried to attract her. “Worth double the price.” But Jane knew from past experience that her ___6___ (choose) of ties hardly ever pleased her father.

Jane stopped where a small crowd of men had gathered. She found some good quality pipes ___7___ sale. She did not hesitate for long: although her father smokeda pipe only once in a while, she knew that this was a present which was bound to please __8___.

When Jane got home, with her small but well-chosen present in her bag, her parents were already ___9___ table having supper. Her mother was excited. “Your father has at last decided to stop smoking,” Jane ___10___ (inform). 

In relation to corporate governance:

(b) Explain how the powers and accountabilities of a sole executive body of a company limited by shares are determined. (5 marks)

提出观察学习的心理学家是（）。

A.班杜拉

B.皮亚杰

C.桑代克

D.斯金纳

钻孔时钻头要均匀进给，将要钻通时，（）钻头进行速度，在钻孔过程中始终要用冷却水冷却钻头。

A.加快

B.减慢

C.不改变

D.停止