题目内容
(请给出正确答案)
[单选题]
以下哪种()材料的生态性能更好 Which of the following materials has better ecological properties()
A.使用寿命较短 Materials with shorter service life spans
B.使用寿命较长 Materials with longer service life spans
C.使用寿命不变 Materials with constant service life spans
D.与使用寿命无关 Ecological property has nothing to do with its service life
答案
性能卓越的材料
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