施工升降机的使用记录，一般包括（）记录和其他内容。A.乘人 B.载货 C.运行 D.

女性，40岁。幽门梗阻致反复呕吐15d入院，呼吸浅慢，血压12.0/9.3kPa（90/70mmHg）。实验室检查：血清钾3mmol/L、钠130mmol/L，pH7.5，血浆HCO^-₃35mmol/L。

假设信息）病人体重60kg，第1天应补给氯化钠：（）

A.4.5g

B.15g

C.21g

D.25.5g

E.36g

管道是管道布置图表达的主要内容，对其画法有一定的要求，对于（），则用中粗实线双线绘制。

A、大直径

B、物料管线

C、蒸汽管线

D、高压管线

完全正相关的证券A和证券B，其中证券A标准差为40%，期望收益率为15%，证券 B的标准差为20%，期望收益率为12%，那么证券组合(25%A+75%B)的标准差为( )。

A．20%

B．25%

C．30%

D．35%

阅读理解。

     Last week my youngest son and I visited my father at his new home in Tucson, Arizona. He moved there

a few years ago, and I was eager to see his now place and meet his friends. My earliest memories of my father

are of a tall, handsome, successful man devoted to his work and family, but uncomfortable with his children.

As a child I loved him; as a school girl and young adult (成年人) I feared him and felt bitter about him. He

seemed unhappy with me unless I got straight A's and unhappy with my boyfriends if their fathers were not

as "successful" as he was. Whenever I went out with him on weekends, I used to struggle to think up things

to say, feeling on guard.

     On the first day of my visit, we went out with one of my father's friends for lunch at an outdoor cafe. We

walked along that afternoon, did some shopping, ate on the street table, and laughed over my son's funny facial

expressions. Gone was my father's critical (挑剔的) air and strict rules. Who was this person I knew as my

father, who seemed so friendly and interesting to be around? What had held him back before?

     The next day, my dad pulled out his childhood pictures and told me quite a few stories about his own

childhood. Although our times together became easier over the years, I never felt closer to him at that moment

. After so many years, I'm at last seeing another side of my father. And in so doing, I'm delighted with my new

friend. My dad, in his new home in Arizona, is back to me from where he was.

1. Why did the author feel bitter about her father as a young adult? [ ]

A. He expected too much of her.

B. He was too proud of himself.

C. He did not love his children.

D. He was silent most of the time.

2. When the author went out with her father on weekends, she would feel _____.[ ]

A. safe

B. sorry

C. tired

D. nervous

3. What does the author think of her father after her visit to Tucson? [ ]

A. Strict and hard-working.

B. More talkative.

C. Gentle and friendly.

D. More critical.

4. The underlined words "my new friend" in the last paragraph refer to _____. [ ]

A. the cafe owner

B. the author's father

C. the friend of the author's father

D. the author's son