這里有一個片段，大英四級的標準。清高手簡單瀏覽后作出選擇。This debris poses little danger to us on the earth, but since it is traveling at average relaive speeds of six miles per second, it can severely damage expenxive equipment in a collision. This threat was dramatized by a cavity one-eighth of an inch in diameter created in a window of a United Stateds space shuttle in1983.The pit was determined to have been caused by a colision with a speck of paint traveling at a speed of about two to four miles per second.The window had to bo replaced.Question:What effect did orbital debris have on one of the spce shuttles? A,it damaged one of the window . B,it led to a collision with a space station.答案那里找？請指點。

熱心網友

你好, 我把這段話翻譯一下,答案回不言自明的.這樣的碎片在地面上對我們根本造不成任何傷害,但是在太空中,由于它們以每秒六英里的速度飛行,一旦發生碰撞就回對那些昂貴的設備造成巨大的損壞. 1983年就發生過這樣的事情,一架美國航天飛機上的一扇窗戶被洞穿了一個直徑為八分之一英寸的孔.最后原因被確定為,一個以每秒大約二到四英里飛行的漆片撞擊造成的.結果這扇窗戶必須被換掉. 再看問題:碎片對其中一架航天飛機造成了什么影響? 答案已經出來了