第1个回答 2011-09-24
1 are being substituted by computers and projectors
2 will be published by the end of this year
3 can show the mechanism of cells
4 I was shocked because the price was more than I had expected,
5 effective measures should be taken
第2个回答 2011-09-24
1. being replaced by the computer and the projector 2._ ( to the end of the year will have been published 3. ( can be used to demonstrate the way that cells work. 4. I was shocked, price is much higher than I had anticipated 5.Effective measures must be taken immediately
第3个回答 2011-09-24
1)have been replaced by the computer and projection
2)will be published in the end of this year
3)can present how the cell works
4)i was shocked of the high price beyond my expection
5)It is supposed to take effective actions