問題詳情
(b) The first American space toilet was Alan Shepard’s space suit. His flight was supposed tolast only 15 minutes, so there was no provision made for him to relieve himself in the capsule._46.___, was delayed for hours. It was then decided that Alan Shepard shouldrelieve himself in his space suit, and continue with the mission as scheduled. ___47.___ problemurged NASA to develop the first space toilet, a modified diaper. Diapers are ___48.___ used byastronauts when they are outside the space shuttle, wearing a spacesuit. As the flights grewlonger, a new set of two collection bags was devised, ___ 49.___ for liquid wastes and the otherfor solid wastes. Once used, the bags are sealed and stored for the flight back to the earth,___50.___ they are disposed of.
【題組】46. ( )
(A) therefore
(B) similarly
(C) however
(D) otherwise
參考答案
答案：C
難度：非常困難0
統計：A(2),B(0),C(0),D(0),E(0) #
個人：尚未作答 書單：沒有書單，新增