问题
选择题
比值一定,比的前项和后项( )
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答案
因为比的前项÷比的后项=比值(一定),
符合正比例的意义,
所以比的前项和后项成正比例;
故选:A.
比值一定,比的前项和后项( )
|
因为比的前项÷比的后项=比值(一定),
符合正比例的意义,
所以比的前项和后项成正比例;
故选:A.
从方框中选择恰当的句子使对话完整正确,有两项是多余的。 | |
John: Hi, Mike. Mike: Hi, John. John: 1. Mike: Reading a book. John: 2. we can watch a video. Mike: 3. John: It's on Lake Street. It's a quiet street. Mike: Oh, OK. 4. There's a new hotel on the corner. John: Yes, There's a small supermarker on the street. Our house is across from the supermarket. Mike: 5.
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