清朝于18世纪60年代开始开放东北，允许、鼓励内地民众迁到东北。

(1)在Fe(OH)₃胶体中，逐滴加入HI稀溶液，会出现一系列变化。先出现红褐色沉淀，原因是______________________；

(2)随后沉淀溶解，溶液呈黄色，写出此反应的离子方程式______________________________；

(3)最后溶液颜色加深，原因是____________________， 此反应的离子方程式是_____________________________；

(4)若用稀盐酸代替HI稀溶液，能出现上述哪些相同的变化现象？__________________。（写序号）

产后子宫复旧降至骨盆腔出现在（）

A．产后6周 

B．产后1周 

C．产后10日 

D．产后2周 

E．产后3日

阅读理解。

     A new study indicates that combining aerobics (有氧运动) and weight lifting can help people with Type 2

diabetes (糖尿病) keep their blood sugar levels under control.

     Most people probably think of diabetes control in terms of diet or insulin (胰岛素), but Dr. Tim Church

says exercise can play a big role.

     "If you look at what diabetes is, it's the failure of the body to manage the blood sugar, and the biggest

consumer of blood sugar in the human body is skeletal (骨骼) muscle," he says." So if you keep skeletal

muscle happy, it's chewing up blood sugar 24 hours a day."

     Church says most previous studies looked at the impact on diabetes of one kind of exercise only-typically

aerobic exercise, like walking or bicycling. So he and his colleagues recruited (招募) more than 250 patients

with diabetes and randomly assigned them to an aerobic exercise group, a weightlifting group, a group that did

both kinds of exercise, or a control group that had no organized exercise program.

     After nine months, he said, the results were clear.

     "And for everything we looked at, but in particu1ar related to hemoglobin (血红蛋白) A1C-that represents

blood sugar control-the group that did both the walking and the resistance training, or weight lifting, did by far

the best."

     Church said he expected that the group that did both kinds of exercise would do better, but he was

surprised by how much better they did-not just on controlling blood sugar, but on other relevant measures as

well, like weight. He said different kinds of exercise affect the body differently, especially the big muscles that

are fueled by blood sugar.

     "Skeletal muscle is so important for your health, and that's particularly true in individuals with diabetes," he

explained."And aerobic exercise affects skeletal muscle through one set of mechanisms(机制), and the

weight-lifting affects skeletal muscles through a completely different set of mechanisms. So when you

combine aerobic plus the weight-lifting, you're doubling the opportunity for benefit."

1. Which of the following is true of diabetes?

A. The body fails to manage the blood sugar.

B. It can be controlled only through diet or insulin.

C. Skeletal muscles can't consume blood sugar.

D. People with type 2 diabetes are too fat.

2. Dr.Church was surprised that _____.

A. the group doing both kinds of exercise just controlled blood sugar

B. his colleagues recruited so many people in his experiment

C. the result of his experiment was far beyond his expectation

D. the group doing both kinds of exercise just controlled weight

3. What does the underlined phrase "the resistance training" refer to?

A. aerobics

B. walking

C. bicycling

D. weight-lifting

4. According to the text, we can learn that _____.

A. all the experiment groups have an organized exercise program

B. different kinds of exercise affect the body the same way

C. skeletal muscles are important only for individuals with diabetes

D. aerobics and weight-lifting affect skeletal muscles in a different way

5. The text is most probably a _____.

A. science fiction story

B. science health report

C. newspaper advertisement

D. book review

男性，35岁，慢性肾炎8年，水肿、少尿1个月，呕吐3天，血压165／95mmHg，两肺底散在水泡音，颈静脉怒张，BUN42mmol／L，血钾7．0mmol／L，最佳处理措施是（）

A.5％的碳酸氢钠250ml，静脉滴注

B.10％（沿20ml+10％葡萄糖酸钙10ml，静脉推注

C.10％GS500ml+50％GS40ml+普通胰岛素18U，静脉滴注

D.急诊血液透析

E.急诊腹膜透析

全补偿链形悬挂中，当承力索弛度误差不足规定安全值者按（）掌握。

A、5mm

B、10mm

C、15mm

D、20mm