平面图形对一组相互平行轴的惯性矩中，对形心轴的惯性矩（）。A.最大 B.最小 C.在

阅读短文，选择正确答案。

       Every country has its own (自己的) way of cooking. American people have their way of cooking.

       Most people in the United States like fast food, but if you think that American people don't like cooking, you

are wrong. It's true (真实的) that most Americans eat fast food for their breakfast and lunch, but they also think

cooking is interesting. Parents see the importance of teaching their children how to cook, and most Americans

say that home-cooked meals are the best.

       Americans have their own way of cooking. For example, baking (烘烤) is the most popular way of cooking

in America. Most American families have ovens (烤炉). American cooks (厨师) pay attention to (注意) the

balance of food. In planning a big meal, they try to cook meat, a few vegetables, some bread and often some

sweet food. They also like to make the meal look beautiful. There are many kinds of food of different colors, so

the meal is healthy and looks beautiful, too.

1. Most Americans _______. [ ]

A. like fast food

B. like having a picnic (野炊)

C. don't like cooking

D. cook food in the morning

2. _______ is the most popular way of cooking in the USA. [ ]

A. Cutting

B. Baking

C. Frying

D. Peeling

3. From this passage, we know _______. [ ]

A. most Americans like to eat fast food for dinner.

B. most Americans don't have breakfast or lunch.

C. most Americans have fast food for their breakfast or lunch.

D. most Americans don't eat fast food for their breakfast or lunch.

4. How does an American cook balance different kinds of food? [ ]

A. He makes the food delicious.

B. He cooks a lot of meat for a big meal.

C. He cooks a lot of vegetables for a big meal.

D. He cooks meat, vegetables, bread and sweet food for a big meal.

5. Which of the following is RIGHT according to (根据) the passage? [ ]

A. The meal looks beautiful because the food is in different colors.

B. American parents do not like to teach their children how to cook.

C. American people do not like to cook food at home.

D. Most people in the United States don't like fast food at all.

流行性角结膜炎的病原体不包括()

A．腺病毒7型

B．腺病毒8型

C．腺病毒19型

D．腺病毒29型

E．腺病毒37

治疗原发性血小板减少性紫癜的有效方法是（）。

A.叶酸，睾丸酮，维生素K

B.睾丸酮，免疫抑制剂，脾切除

C.铁剂，叶酸，睾丸酮

D.肾上腺皮质激素，免疫抑制剂，睾丸酮

E.肾上腺皮质激素，免疫抑制剂，脾切除

根据我国情况，成人头面颈占人体体表总面积的

A．9%

B．5%

C．10%

D．15%

E．3%

泄漏电流（1eakage current）