A. a nearly 40-degree angle B. get on bikes C. a feather pillow D. fix more problems E. a super-strong battery F. benefit their

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问题 A. a nearly 40-degree angle
B. get on bikes
C. a feather pillow
D. fix more problems
E. a super-strong battery
F. benefit their community
Many young researchers are finding solutions to problems that may______.

选项

答案F

解析 由第四段第三句“…that may benefit their community…”可知,本题应该选择F项。
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