【简答题】阅读理解。 Drinking water is good for your health. There are some scientific ways of drinking water. 1. It is the best medicine to drink two glasses of water in the morning. 2. Drink clean water. 3. Drink ...
【单选题】某一正弦交流电波形如图所示,其瞬时值表达式为( )。
【单选题】Neal:I expect you could do with a cup of tea,couldn’t you?Sally:__________have a cup of coffee,if you don’t mind.
【单选题】— Sally, have you finished the project? — Not yet. — You've failed to do what you _____. Aren't you afraid your teacher will blame you? [ ]
【单选题】Have you ever argued ________your friends,Sally? [ ]
【单选题】I have made an ______ for you to see the doctor at eleven this morning.
【单选题】We don’t need heating system, ________.
A.
and nor we can afford it
【简答题】Xiaoyan: I have most of the things I need.We don' t need to buy any rice, and we don't need any peas. Mary: We need some oranges.How many do we need to buy? Xiaoyan: Four are enough.And we need some c...
【单选题】如图所示,某正弦电流波形图,其瞬时值表达式为_____