問題詳情

文意選填：選項若置於句首，將第一個字母視為大寫。io%Biospheres are designed by specialists at The Environment Research Laboratory at the University of Arizona. These spaces could be used by people to live on other planets.As they are totally enclosed environments _33 people can be bora, live，and die， biospheres must have a perfect balance between all living creatures, plants, and 一34—. To make these complex and —35— projects successful, specialists and experts from various fields are required. To create a biosphere，the first step is to build a greenhouse for plants to grow in during the winter. —36— glass or plastic，a greenhouse is a closed environment. People then 37_ nutrients for the plants, —38— a water system from outside that can be used over and over again, and take out the waste material. As you can imagine, a biosphere built in space will need its own —39 _. To take care of the waste, _40— or something else will be needed. Everything has to be in perfect balance; —_41—? the whole system will collapse. The best example of a biosphere is the Earth itself. —42— sunlight, nothing else important enters, and nothing leaves as waste except heat. If we destroy the balance of the Earth’s environment, the entire system will break down.
(A)time-consuming
(B) other than
(C) chemical elements
(D) in which
(E) water provision (AB) otherwise(AC) along with(AD) made of(AE) bring in(BC) bacteria
33

參考答案

答案：D
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)

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