单项选择题
A.that had been driven
B.had been driven
C.have been driven
D.which to have been driven
单项选择题 The safest device used to secure the end of the pendant wire when it is initially passed to the anchor handling vessel is a（）.
单项选择题 The purpose of the stripping bar on an anchor windlass is to（）.
单项选择题 The Pilotage-quarantine anchorage，（）between Damen Dao and Qingshan Dao，is defined by the lines（）the given points.