Marinersproceedingacrossthemainroutesarerecommendedt

Mariners proceeding across the main routes are recommended to do so at______．

A.as wide an angle as practicable

B.as wide an angle so practicable

C.like wide an angle as practicable

D.like wide as angle so practicable

正确答案：A
海员航行穿越主航道时建议以尽可能大的角度穿越