A.prevent chain from clinging to the wildcat B.clean the marine debris from the chain C.flake chain from a boat's chain locker D.clean chain prior to an x-ray inspection
A.彌漫型病變B.菜花樣新生物C.局灶性息肉狀物D.乳頭型病變
A.再生式轉(zhuǎn)型B.轉(zhuǎn)讓式轉(zhuǎn)型C.政府干預(yù)