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
我们的重吊杆已经长时间不用了。()
微信扫一扫手机做题