根据CWBT的维修方针，对于海水泵的机械轴封采用的维修方式是（）A.视情维修 B.事

下列关于中国建筑气候分区的说法中哪条有错误?

A.中国建筑气候分区中的Ⅳ区就相当于全国建筑热工设计分区中的“夏热冬暖地区”

B.中国建筑气候分区中的Ⅶ区就相当于全国建筑热工设计分区中的严寒地区

C.中国建筑气候分区中的Ⅲ区不包括西安和徐州

D.中国建筑气候分区中的V区不包括重庆和桂林

如图所示，小球从左端最高点A摆至最低点B的过程中， _____能转化为 _____能．在转化的过程中，不计空气阻力，小球的机械能总量 ______（选填“增大”“减小”或“不变”）．

任务型阅读。

      请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。

注意：每个空格只填l个单词。请将答案写在横线上。

     People today are becoming increasingly aware that a proper diet is the foundation of good health. If we

don't have a regular diet of proper food, we don't have the fuel to perform at our best. However, some people

think not eating breakfast doesn't matter a lot, though eating it is important. Get the truth behind this common

wrong idea and other meal frequency and timing meals. Change Text Size Bookmark Yahoo! Buzz Del.icio.us

Digg Reddit Facebook StumbleUpon TwitThis javascript：void (0); Will eating breakfast every day help me lose

weight?

     Yes, eating the morning meal can actually help you lose pounds. People who have breakfast are less likely

to eat diet-busting (破坏的) junk food and are more likely to exercise later in the day, as studies show. People

who skip breakfast, on the other hand, usually make up the calories before day's end. Researchers found that

78 percent of the men and women included in the National Weight Control Registry - who have maintained an

average weight loss of 66 pounds for more than 5 years - eat breakfast every day. Is"grazing" really healthier

than eating three square meals a day?

     No. Eating many small meals throughout the day is probably not better for you than three main meals, the

traditional amounts of food for breakfast, lunch, and dinner. The idea that "grazing" is healthier comes from a

few old studies showing that eating frequent meals throughout the day may burn more fat and lower insulin

(胰岛素)levels. But later studies have found no benefit to grazing. It's not healthier than eating three squares,

according to the American Dietetic Association. I've always eaten most of my calories at dinner. If I'm healthy,

is there any reason for us not to keep doing this?

     Hard to say. Instinctively, it sounds like a bad idea. Yet"one-mealers" tend to eat less food totally, scientists

say, so your dining habit may actually help you stay tidy and attractive. On the other hand, one small, brief

study by USDA scientists found that eating just one daily meal may cause small increases in blood pressure,

blood sugar, and cholesterol (胆固醇). If your annual blood tests show a rise in any key risk factors for heart

disease or diabetes, it is high time for you to reconsider your meal strategy. Will bedtime snacks make you fat?

      No. But that's not permission for you to eat cookies before going to bed every night. Consuming more

calories than you burn through physical activity produces big loose stomachs and weak legs no matter what

time you overeat. A habit of snacking in front of the television every evening will lead to weight gain, but no

more so than having a six-egg pancake for breakfast or conquering a bag of beans with sweet food at your

desk every afternoon. The final word Eat fewer calories than you need in a day and you will lose weight.

     Eat breakfast because it will help you control calories better, not because it's a magic meal. Eat the number

of meals that keeps you satisfied and energized. No one plan is best for everyone

为保持颅脑创伤患者的大脑灌注压，最好应保持收缩压为（）

A.80～90mmHg

B.90～100mmHg

C.100～110mmHg

D.110～120mmHg

E.120～130mmHg