我们的重吊杆已经长时间不用了。（）
- A、Our derrick has been out of use for a long time.
- B、Our heavy derrick has been out of use for a long time.
- C、Our crane has been out of use for a long time.
- D、Our winch has been out of use for a long time.
正确答案:B
答案解析:有
微信扫一扫手机做题
多做题，通过考试没问题！
船舶水手考试