化学性食物中毒的最常见致病因素是（） A.有机磷农药 B.有机氯农药 C.铅中毒 D

急性肾衰竭时，下列哪种情况需紧急血液透析（）

A.血尿素氮>18.4mmol/L

B.持续呕吐

C.血钾>6.0mmol/L

D.急性肺水肿

E.动脉血气分析pH<7.35

For a while, my neighborhood was taken over by an army of joggers．(慢跑者). They were there all the time—early morning, noon, and evening. There were little old ladies in gray sweats, young couples in Adidas shoes, middle-aged men with red faces. “Come on!” My friend Alex encouraged me to join him as he jogged by my house every evening. “You'll feel great.”

Well, I had nothing against feeling great and if Alex could jog every day, anyone could. So I took up jogging seriously and gave it a good two months of my life, and not a day more. Based on my experience, jogging is the most overvalued form of exercise around, and judging from the number of the people who left our neighborhood jogging army. I'm not alone in my opinion.

First of all, jogging is very hard on the body. Your legs and feet a real pounding (沉重的脚步) running down a road for two or three miles. I developed foot, leg, and back problems. Then I read about a nationally famous jogger who died of a heart attack while jogging, and I had something else to worry about. Jogging doesn't kill hundreds of people, but if you have any physical weaknesses, jogging will surely bring them out, as they did with me.

Secondly, I got no enjoyment out of jogging. Putting one foot in front of the other for forty-five minutes isn't my idea of fun. Jogging is also a lonely pastime. Some joggers say, “I love being out there with just my thoughts.” Well, my thoughts began to bore me, and most of them were on how much my legs hurt.

And how could I enjoy something that brought me pain? And that wasn't just the first week: it was practically every day for two months. I never got past the pain level, and pain isn't fun. What a cruel way to do it! So many other exercises, including walking, lead to almost the same results painlessly, so why jog?

I don't jog any more, and I don't think I ever will. I'm walking two miles three times a week at a fast pace, and that feels good. I bicycle to work when the weather is good. I'm getting exercise, and I'm enjoying it at the same time. I could never say the same for jogging, and I've found a lot of better ways to stay in shape.

小题1:From the first paragraph, we learn that in the writer's neighborhood ________.

A．jogging became very popular

B．many people were encouraged to jog

C．Alex organized an army of joggers

D．jogging provided a chance to get together小题2: The underlined word “them”(Paragraph 3) most probably refers to ________.

A．heart attacks

B．Back problems

C．hundreds of people

D．physical weaknesses小题3: From the author's experience, we can conclude that ________.

A．jogging can help people keep fit

B．many physical problems result from jogging

C．not everyone enjoys jogging

D．jogging makes people feel great

下列情形成立不作为犯罪的有：（）.

A．甲故意伤害李某，本意是要轻伤，但是造成李某重伤，甲看到李某重伤后扬长而去 

B．乙偷偷砍伐森林里的珍贵树木，树倒下时将正在偷猎的廖某砸成重伤，乙赶紧逃跑；致廖某死亡 

C．丙下班后见同事被车撞伤在地，当作没有看见就走了，该同事后来残废 

D．丁拘役期间因表现良好，获准回家探亲一周，但期满后推迟了五天才回到看守所

路段收费系统和收费设施的建设和改造，由路段公司负责，主要包括以下内容：（）

A、改造路段现有收费系统

B、撤并区域内主线收费站

C、设置ETC车道

D、撤并匝道收费站

提升机工作照明的开关，应与主电源开关相互独立，当提升机主电源被切断时，工作照明不应断电，各自的开关应有明显标志。