23.Paragraph 1 _____. 24. Paragraph 2 _____. 25. Paragraph 3 _____. 26. Paragraph 4 _____. | A. Intel International Science and Engineering Fair B. The Enthusiasm for Solving Problems C. The Young Researchers’ Passion D. An Invention Increasing Pedal Power E. Why People Avoid Biking in Pittsburgh F. The Cause of National Disaster |
A. a nearly 40-degreeangle B. get on bikes C. a feather pillow D. fix more problems E. a super-strong battery F. benefit their community |
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