急性胆囊炎最常见的原因是（） A.胆囊管过长，扭曲 B.螺旋瓣异常 C.胆瘤压迫 D

证券的柜台自营买卖通常交易手续简单、清晰、费时少，且多为债券买卖，因而具有吞吐量大的特点。

阅读理解。

     Every kid wishes to be an adult. But now as grown-ups, some adults find they cannot leave childhood

behind. They become "kidults" (kid+adult). Being a kidult has become a lifestyle-choice among young people

across Asia. Some kidults collect toys they once played with. Hello Kitty, Garfield, and Snoopy have many

adult fans around the world. It is not unusual to see a 20-something woman with a big, Garfield-shaped

cushion on her sofa or a Hello Kitty mobile phone accessory.

     Other kidults still enjoy children's stories and fairy tales. For example, Bloomsbury even published the

Harry Potter novels with an adult cover. That way, no one else on the subway will know that an adult is

actually reading a children's book!

     "Kidults can be like vitamins to society. Adults who value their childhood and hold on to pure, child-like

emotion may be needed in such a rough and dry society," said Lee Sojung, professor of Foreign Studies at

Hankuk University (韩国外国语大学). He added that kidult culture may fill the generation gap between adults

and kids. It could give children and their parents books, movies, and cartoon shows to enjoy together. He

may be right.

     Tim Greenhalgh, a professor, explained that some kidults just refuse to grow up. They value childhood

because life in a busy and stressful city frightens them. Kidults would like to forget their age and openly

show their fear of society and adulthood.

1. We can infer from the article that _____.

A. Kidults miss their childhood so much that they can't give up their toys

C. Kidults like to have vitamins very much

B. Bloomsbury knows some kidults don't want people to know that they are kidults

D. Some toys are so interesting that even adults like them very much

2. According to the author, being a kidult is good in some way except that _____.

A. it can improve the relationship between parents and their kids

B. it can help kidults feel relaxed

C. it is helpful to solve some social problems

D. it can make people loyal to one's parents 

3. According to the writer, _____.

A. being a kidult is nothing wrong

B. kidults have mental problems

C. our society is very dull

D. some people can never grow up

患者男，10岁，电击伤应当紧急处理为（）

A.心肺复苏

B.口腔手术

C.脱离电流

D.肾上腺素

E.ECG监测

预防心血管疾病应多吃下列哪类食品（）

A.豆制品类和鱼类

B、肉类和鱼类

C、油脂类

If you left your book on the table overnight, you would find the following morning that it was still exactly where you had left it, provided nobody had moved it. If a ball is made to roll on a very smooth surface, it will roll a long distance unless something stops it or changes its direction. This tendency of an object to remain at rest unless something moves it and to continue moving unless something stops it is known as the Law of Inertia.
The following examples show the truth of this law.
a. Put a table-cloth on a table and arrange a pile of books on it. Hold one edge of the table-cloth and pull it quickly. The table-cloth will come off, leaving the pile of books undisturbed.
b. Place a small piece of cardboard on an open jar and place a coin on it directly over its mouth. Use one finger to flick the piece of cardboard away. You will notice that the coin drops into the jar.
c. Sitting in a car which starts suddenly, you feel you are jerked backwards. In fact, you are not jerked backwards. Your lower half, which is in contact with the cushion, is forced to move forward with the car, and the upper part of your body, which remained at rest, is left behind.

This passage, on the whole, is developed by ______

A. time
B. space
C. process
D. example