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What are the inventors doing in the lab? ( )(本题2.5分)
A. Replacing carbon fibers with shrilk.
B. Testing ahrilk.s use in wet conditions.
C. Making shrilk out of used household goods.
D. Improving shrilk.s flexibility for medical purposes.
A. Replacing carbon fibers with shrilk.
B. Testing ahrilk.s use in wet conditions.
C. Making shrilk out of used household goods.
D. Improving shrilk.s flexibility for medical purposes.
参考答案