清晨，草叶上的露珠是由空气中的水汽凝结成的水珠．这一物理过程_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

清晨，草叶上的露珠是由空气中的水汽凝结成的水珠．这一物理过程中，水分子间的（　　）

A．引力消失，斥力增大

B．斥力消失，引力增大

C．引力斥力都减小

D．引力斥力都增大

答案

答案：D

仿写题，造句

综合填空：阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺意思完整。每空限填一词，每词限用一次, 有两个词是多余的。共10分。

try, how, what, if, can, wonderful,
much ,shop , read, glass , down , put.

Tom lived away from town . One day he went into town to buy something in the shop . and after he bought小题1: ________ he wanted, he went into a restaurant and sat小题2:________ at the table. When he looked round, he saw
some old people小题3:________ eyeglasses on before小题4:________ their books, so after lunch he went to a shop to buy 小题5:________, too. He walked along the road, and soon found a 小题6: ________.
The man in the shop made him 小题7:________ on a lot of glasses, but each time Tom said, “ No, I can’t read with these. ”
The man became 小题8:________ and more puzzled (困惑) . At last he said, “ Excuse me, but 小题9:________ you read at all?”
“ No, I can’t! ” Tom said, “小题10:________ I can read, do you think I will come here to buy glasses? ”

判断题

将清洁能源转换为电能是发展清洁能源的最主要途径。