问题
单项选择题
电场里单位时间内做的功叫（）。
A.电压
B.电功率
C.电流
D.电阻
答案
参考答案：B
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电场里单位时间内做的功叫（）。
A.电压
B.电功率
C.电流
D.电阻
参考答案：B
The best thing to start your day is a good breakfast. There are different 1 of breakfasts around the world.“Eat breakfast like a king, lunch like a prince and dinner like a pauper(穷人).” 2 the old saying tells us, breakfast is the most important meal of the day. It 3 us with energy after a long night without food. If people don’t have breakfast in the morning, they will feel tired and get angry easily. Breakfast helps children stay more focused in school. A study showed that children who eat breakfast regularly score 4 in most subjects. Breakfast is also important for weight loss. If you have a balanced breakfast, you will eat 5 throughout the day.A healthy and 6 breakfast should include some protein(蛋白质) like eggs, milk or a little meat, which makes you energetic all day.Carbohydrates(碳水化合物)like rice or bread can keep you active. Vegetables and fruit 7 the vitamins that humans need. 8 ,in China, breakfast is different from region to region. Porridge with pickles(咸菜),baozi, noodles, soybean milk and youtiao are common throughout the 9 country. Although Western culture has influenced China a lot, most people still 10 traditional Chinese breakfast. They think that porridge and noodles are not only easily digested(消化), but also can provide enough energy in the morning.
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