問題詳情
48.What has been done about the space trash problem?
(A) Scientists have cleaned up most of the trash.
(B) Large pieces of space trash are being closely watched.
(C) Many nations have worked together to stop polluting space.
(D) Ground stations are built to help store the trash properly in space.
(A) Scientists have cleaned up most of the trash.
(B) Large pieces of space trash are being closely watched.
(C) Many nations have worked together to stop polluting space.
(D) Ground stations are built to help store the trash properly in space.
參考答案
答案：B
難度：適中0.430769
統計：A(11),B(28),C(11),D(11),E(0)
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