is stronger than steel and lighter than a feather is the silk spiders make their webs.A

发布时间：2020-08-16 10:45:30


     is stronger than steel and lighter than a feather is the silk      spiders make their webs.
A. That; that
B. Which; for which
C. What; what
D. What; with which

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A. That; that
B. Which; for which
C. What; what
(答案→)D. What; with which
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