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问题 单项选择题

下列药物哪一个可引起低血钾

A．氨苯蝶啶

B．螺内酯

C．呋塞米

D．乙酰唑胺

E．氢氯噻嗪

答案

参考答案：C

综合

（13分）根据材料和图表完成下列问题。

    

　　　　　　　　　　　　　　　　　　　　　四城市年降水量和1月、7月气温

（1）图中G地的气候类型是        ，其周边地区的农业地域类型为        。（2分）（2）有关图中A→D四城市叙述正确的是（2分）（　　）

A.一天中的任意时刻，太阳高度角都是A>B>C>D

B.一年中的任意一天，白昼时间都是A>B>C>D

C.一年中的任意一天，气温都是A>B>C>D

D.一年中的任意一天，正午太阳高度角都是A>B>C>D

（3）图中A→D四城市年降水量逐渐减少，最主要的原因是（2分）（　　）

A.受洋流影响            B.受地形影响

C.受东南季风影响        D.受西北季风影响

（4）图中A→D四城市气温年较差变化规律是       ，简述这种变化规律的形成原因。（3分）

（5）根据下面图表资料，结合相关地理知识，说明E、F两城冬季和夏季降水的差异，并分析造成这种差异的原因。（4分）

 12～2月3～5月6～8月9～11月
E城平均气温（℃）3.61224.316.2
降水量（mm）793.1435558.3541.6
F城平均气温（℃）7.114.224.618.5
降水量（mm）241.6672.3868.4544.7
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单项选择题

The United States government publishes guidelines for appropriate nutrient intakes. These are known as the Recommended Dietary Allowances (RDAs) and are updated regularly based on new research in nutrition. RDAs are suggested amounts of calories, protein, and some minerals and vitamins for an adequate diet. For other dietary substances, specific goals must await further research. However, for the U.S. population as a whole, increasing starch and fiber in one’s diet and reducing calories (primarily from fats. sugar, and alcohol) is sensible. These suggestions are especially appropriate for people who have other factors for chronic diseases due to family history of obesity, premature heart disease, diabetes, high blood pressure, and high blood cholesterol, or for those who use tobacco.
Snacks can furnish about one-fourth of the calorie requirements among teenagers. Those snacks should also provide much of the day’s allowances for protein, minerals, and vitamins. Sandwiches, fruit, and milk make good snacks for active teenagers. Food from the food pyramid may be part of any meal. A grilled cheese sandwich or a bowl of whole-grain cereal is just as nutritious in the morning as it is at noon. In addition, a good breakfast consists of any foods that supply about one-fourth of the necessary nutrients for the day.

The passage implies which of the following

A．The time of day when food is consumed affects its nutritive value.

B．Different foods can be combined to increase total nutrition value.

C．It can be detrimental to your health to eat breakfast foods later in the day.

D．When food is eaten has no bearing on its nutritive effects.
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