Blocks in the Admiralty Notices to Mariners often substitute________(1.0)
A.piece of wooden B.a kind of tackle C.a certain part of charts D.a kind of tool正确答案C
Blocks in the Admiralty Notices to Mariners often substitute________(1.0)
A.piece of wooden B.a kind of tackle C.a certain part of charts D.a kind of tool正确答案C
