题目内容
(请给出正确答案)
提问人:网友lixin080108
发布时间:2022-01-07
[主观题]
In this work, our objective was to improve the carbon fiber performance significantly by utilizing very high molecular weight polymer so that high quality precursors can be produced. The underlined wo
A.producing high quality precursors
B.to produce high quality precursors
C.so that produce high quality precursors.
D.produced high quality precursors
简答题官方参考答案
(由简答题聘请的专业题库老师提供的解答)
查看官方参考答案