以下对于溃疡性结肠炎的叙述，哪项正确（） A.女性多于男性 B.年龄以12～20岁多

发布时间：2017-09-03 23:28 │ 来源：www.tikuol.com

题型：单项选择题

问题：

以下对于溃疡性结肠炎的叙述，哪项正确（）

A.女性多于男性

B.年龄以12～20岁多见

C.病情无反复发作

D.病因已经明确

E.慢性腹泻、便血是主要的临床表现

考点：上海住院医师精神科消化内科消化内科题库

题型：单项选择题

与能量代谢有关的是（）

A.叶酸

B.维生素B₁

C.维生素A

D.维生素C

E.生物素

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题型：单项选择题

阅读理解。

       What is American food? At first you might think the answer is as easy as pie. To many people, American
food means hamburgers, hot dogs, fried chicken and pizza. If you have a "sweet tooth", you might think of
apple pies or chocolate cakes. It's true that Americans do eat those things. But are those the only kind of food
you can find in America?
        Except for Thanksgiving turkey, it's hard to find a typical (典型的) "American" food. The United States
is a land of immigrants (移民). So Americans eat food from many different countries. When people moved to
America, they brought their cooking styles (方式、类型) with them. That's why you can find almost every
kind of ethnic (民族) food in America. In some ways, Americans have taken foods from other countries as
favorites. Americans love Italian pizza, Chinese egg rolls. But the American ones don't taste quite like the food
where it comes from.
        As any large country, the US has several special regions (地区). Each region is proud of its own special
style of food. Visit the South and enjoy country-style cooking. Take a trip to New England and taste delicious
seafood dishes. Travel through Midwest for tasty baked food. Travel over Southwest and try good treats.
Finish your food tour in Northwest with some wonderful coffee.
        Americans are living at a fast pace (步速). Fast food restaurants offer people on the run everything from
fried chicken to fried rice. Half-done dinners and fast food make cooking at home very easy. One of the most
popular quick meals is sandwich. If the meat or cheese can be put between two pieces of bread, Americans
probably make a sandwich.
       Americans on the go also eat a lot of "junk food". Potato chips, candy bars, soft drinks and so on are
popular treats. Many people eat too much of these unhealthy food. But others choose for more healthy eating
habits. Some even go "all natural". They refuse to eat any food prepared with chemicals.
       American culture (文化) is a good example of the saying, "You're what you eat."There is different
background and ways of thinking. The kind of foods enjoyed in the US shows all kinds of personal tastes.
The food may be international and regional. Sometimes it's fast, and sometimes it's not so fast. It might be
junk food or maybe it's natural food. No matter what it is, the style is all-American.

1. The ethnic foods that the Americans prefer _______.

A. are Italian and Chinese food
B. are easy to prepare
C. have some changes in their taste
D. are healthy and natural

2. Why can you find almost every kind of ethnic food in America?

A. Because Americans enjoy eating.
B. Because immigrants to America bring their ways of cooking with them.
C. Because it's easy to make ethnic food.
D. Because Americans like to try new-style cooking.

3. The third paragraph mainly tells us _______.

A. where you can find the delicious food
B. Americans like traveling to different regions
C. There are some special regions in America
D. Americans can enjoy some special food in special regions

4. From the passage, we know _______.

A. there is no typical American food in the US
B. natural food is the most healthy food
C. all Americans like to eat fast food because it is easy to make
D. the culture of a country decides its food styles

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题型：单项选择题

在“测定小灯泡的电功率”的实验中，小灯泡上标有“2.5V”字样。

(1)如图甲所示的实验电路中，尚缺少一根导线，请用笔画线代替导线，将电路连接完整。

(2)小科同学正确连接电路后进行实验，记录实验数据如表所示。当他断开开关整理器材时，才发现电表如图乙所示。小科同学应重新实验，实验前他应该进行的实验操作是 _______________ 。小科补上了这一操作后，重新实验并正确操作，他测得小灯泡的额定功率将 _____ (填“大于”、“小于”或“等于”)0.65W。

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题型：单项选择题

女孩，4岁。因发热、头痛、呕吐3d，经门诊脑电图检查，诊断为病毒性脑炎(局灶型)。请问该病人应有的临床体征是

A．烦躁不安，惊厥，意识障碍，肢体强直，病理反射阳性
B．兴奋不安，幻觉，错觉，精神异常，行为改变，脑脊液正常
C．脑神经损害，肢体瘫痪，瞳孔大小不等，呼吸节律不规则
D．脑神经损害，肢体运动性损害，震颤，多动，脑脊液正常
E．脑膜刺激征阳性。颈强直，克氏征、布氏征均阳性，脑脊液细胞数增加

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题型：单项选择题

下列哪种物质能防止上皮组织癌前病变发展成癌（）。

A.硒

B.维生素A

C.维生素E

D.维生素C

E.膳食纤维

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