32. ATTENTION. All vessels near BOSTON harbor must keep ___________ this area in order to search and rescue progress. (A) clearance of (B) clearance on (C) clear into (D) clear of

37. 翻譯：每次當值時間，以人力方式測試自動舵至少一次。 (A) The automatic pilot is tested manually at least once a watch. (B) The automatic rudder is tested manually at least once a duty. (C) The self-control pilot is tested manually at least once a watch. (D) The self-control rudder is tested manually at least once a duty.