(E)What are the main sources(来源)of green energy?(B)1. Water power uses moving water in rivers and dams(堤坝).Moving water has energy. Water power makes 16.6% of the elec-tricity we use.( D )2. Is wind power new? No, it isn't. People used wind pow er many years ago. Wi...
Three glasses of water are shown. The glass of water from the US has ice; the one from France is full of sparkling water(气泡水); the one from Chin a is steaming(冒热气的).Cao also uses her cartoons to show different ways of 6.(think)and social customs. For example, she used her...
Water currents can be found in streams, rivers and oceans throughout the world. Water current is the rate of movement in the water, and ways to describe water current include its speed and direction. There are different types of water currents which behave in different ways because they are ...
Along with the development of society, more and more problems are brought to our attention, one of the most serious issue is the gray population. Nevertheless, the significance of elderly people in society cannot be overstated. As...
The power of creativity C. the power of intelligence D. artificial intelligence 满分:10.00 分 得分:10.00 分 你的答案: B C 正确答案: B C 教师评语: 暂无 2. What does Bill Gates mean by saying “millions of people die from diseases that are easy to prevent or treat...
She hopes to build bridges and break down misunderstandings between different cultures. 73 Three glasses of water are shown. The glass of water from the US has ice; the one from France is full of sparkling water (气泡水); the one from Chin a is steaming (冒热气的). _74 During the CO...
句子结构分析:这是一个非限制性定语从句,先行词是water,从句缺少主语。 2. 选项分析:which可以引导非限制性定语从句,指代先行词water,并在从句中作主语。 **第四题** 1. 语义分析:我们需要找到一个动词,与“the needs of our customers”搭配,表示“满足顾客的需求”。 2. 选项分析:meet the needs of......
Tumbled stones are made in a machine known as a rock tumbler. The most commonly used rock tumbler is a rotary machine that turns a barrel containing the stones, along with abrasive grit, and water, for days and weeks at a time. As the rocks tumble in the barrel, the grains of abrasive...
pH measurement is an important parameter in nearly every water quality application. In environmental sampling and monitoring, high or low pH values can be indicative of pollution. To determine the pH of water, a pH meter can be used to measure this impor
The water cycle, also known as the hydrologic cycle, is the continuous process that describes the movement of water on, above, and below the Earth's surface.