These medical cotton balls are all ________ so as to avoid cross infection.
A.
durable
B.
recyclable
C.
disposable
D.
flexible
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皮皮学刷刷变学霸
举一反三
【单选题】A) He was not well prepared. B) He did not get to the exam in time. C) He was not used to the test format. D) He did not follow the test procedure.