圣德太子

男性，22岁，查体血压140/90mmHg（18.7/12kPa），B超诊断为多囊肾，父亲及爷爷均有多囊肾（）。

A.B超肾单个囊肿直径≤3cm

B.B超左肾盂旁囊肿2个，囊肿直径3.8cm

C.B超双肾大，皮质和髓质出现无数囊肿

D.B超双肾正常大小，髓质出现多数成簇钙质沉着

E.B超双肾多个囊肿

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

     Recently some American scientists have given a useful piece of advice to people in industrialized nations,

They say people should eat more of the same kind of food eaten by humans living more than 10,000 years ago.

1_____

     The scientists say that the human life has changed greatly. Our bodies have not been able to deal with these

changes in lifestyle and this had led to new kinds of sicknesses. 2_____ So they are called "disease of

civilization". Many cancers and disease of blood system are examples of such diseases.

     Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or

tobacco, probably none. 3_____ However, a change in food is one of the main differences between life in

ancient times and that of today.

     Stone Age people hunted wild animals for their meat, which had much less fat than domestic ones. They

ate a lot of fresh wild vegetables and fruits. They did not have milk or any other dairy products, and they made

very little use of grains. 4_____ We eat six times more salt than our ancestors (祖先). We eat more sugar. We

eat twice as much fat but only one third as much protein and much less vitamin C. 

     5_____ But scientists say that we would be much healthier if we eat much the same way as our ancestors

did, cutting the amount of fatty, salty and sweet food.

A. These new sicknesses were not known in ancient times.

B. People today probably do not want to live the way people thousands of years ago did.

C. Ancient people also lived in large groups.

D. But today, we eat a lot of these.

E. Ancient people also got a great deal of physical exercise.

F. In that case, they would live much healthier.

G. People today probably live the same life as people thousands of years ago did.

下列关于蒸汽制冷循环理论循环说法正确的是（）。

A.压缩过程为等温过程，即在压缩过程中不存在任何不可逆损失

B.在冷凝器和蒸发器中，制冷剂的冷凝温度高于冷却介质的温度，蒸发温度低于被冷却介质的温度

C.离开蒸发器和进入压缩机的制冷剂蒸气为蒸发压力下的饱和蒸气，离开冷凝器和进入膨胀阀的液体为冷凝压力下的饱和液体

D.制冷剂流过节流装置时，流速变化很大

自我意识的形成与培养应主要放在（）

A.婴儿期

B.幼儿期

C.儿童期

D.少年期

E.成年期