夏日沿着京广铁路线旅游可以看到的农事活动是（ ） A．农民喜收花生、苹果 B．姑

患者女性，38岁，持续性高血压180／120mmHg，无明显阵发性血压剧升现象，平时多尿，尤以夜尿为甚，多饮，四肢乏力，行动不便，曾疑尿路感染，服用多种抗生素、中药及一般降血压药无明显效果，类似情况已年余，入院检查：血常规正常，尿培养无细菌生长。血电解质：钾2.9mmol／L，钠148mmol／L，二氧化碳结合力38mmol／L，剩余碱+5mmol／L，血糖6．0mmol／L，尿素氮9.3mmol／L。B超：左肾上腺有1.6cm×1.5cm占位性病变，初步诊断为左肾上腺皮质肿瘤，拟行手术治疗。

术前2～4周作术前准备宜用（）

A.输血、补液

B.使用肾上腺素能受体兴奋剂

C.口服螺内酯及血管紧张素转换酶抑制剂

D.使用皮质类固醇

E.使用α受体阻滞剂

     Christmas was just a week away and I had five people left to shop for but only three dollars.

     "Let's set a price limit on our gifts this year,"I suggested to my best friend Joanie.

     "That's a good idea," Joanie agreed. "How about something over five dollars?"

     "How about sixty cents?" I felt like the biggest cheapskate in the world.

     "I guess this is where I'm supposed to say it's not the gift but the thought that counts," Joanie smiled.

      It is almost impossible to buy anything under sixty cents, so it was really going to have to be very

small gifts with very big thoughts.

      Finally, Christmas Day arrived. I gave my mother a candle with a note that said, "You are the

brightest light in my life." She almost cried when she read the note.

      Igave my brother a wooden ruler. On the back of it I had painted, "No brother in the world could

measure up to you." He gave me a bag of sugar and wrote on it, "You're my sweet sister."

      For Joanie, I painted a pair of shoes with a note that said, "No one could ever fill your shoes. "She

thanked me and said I always tickled (使……高兴) her and made her laugh.

     To my other two friends, I gave Annie a paper fan and a note on it, "I'm your biggest fan." I gave

Helen a calculator that cost one dollar and I painted a message on the back, "You can always count

on me."

      My mother knows she is the most important person in my life. My brother thinks I'm sweet. Joanie

thinks I'm funny and make her laugh, which is important because her dad moved away last year and she

misses him and is sad sometimes...

1. When Christmas neared, the author worried that she________.

A. had few friends to give her gifts

B. had little money to buy gifts for others

C. didn't know what gifts her friends would like

D. didn't have enough time to go shopping

2. The underlined word "cheapskate" in Paragraph 4 probably    refers to a person who________.

A. is the poorest in the world

B. buys the cheapest skateboards

C. spends as little money as possible

D. buys the cheapest things in the world

3. The girl gave her mother a candle because it stands for________.

A.  the girl's own life

B. her mother's life

C. the girl's role in her mother's life

D.  the mother's role in the girl's life

4. What can we learn from the passage?

A. It is an art to choose gifts.

B. It is the thought not the gift that matters.

C. How to choose cheap gifts.

D. Giving gifts improves friendships.

下列哪些改变与低蛋白血症相关（）

A.脂代谢紊乱

B.甲状腺素水平下降

C.体液免疫功能低下

D.营养性大细胞性贫血

E.营养性小细胞性贫血

施工现场安全生产“三宝”指的是安全帽、安全带和安全网。

捞油时捞油泵带着钢丝绳以一定速度下入井内，若发现钢丝绳突然（），且载荷变小时，则可断定此时的深度为液面深度。

A、下沉

B、绷紧

C、松动

D、不动