問題詳情
I.綜合測驗,每題1分,共30分 < 1> Inventors find many new ideas by looking carefully at nature.__1__ Velcro for example. In the summer of 1948, a Swiss inventor, George de Mestral took his dog for a hike. When arriving home, he noticed his pants __2__ with burs. He ran to his microscope and found that __3__ small hooks of burs that stuck to his pants. __4__ Mother Nature, Mestral invented Velcro. German scientists also __5__ from nature and invented a self-cleaning paint. They found the lotus often grows in the mud and that its leaves __6__ dry and clean even after a rainfall. Later a German company used the concept to make a paint __7__ surfaces easy to clean. Spider silk is one of the strongest lightweight materials __8__. But it is difficult to produce in large amounts. So scientists put spider genes inside goats. And the __9__ is large quantities of spider silk from milk! __10__ from nature, and you'll be surprised by its great designs.
【題組】1.
(A) Take
(B) Look
(C) To watch
(D) Making
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)