开动桥式起重机前,必须注意轨道两侧和地面上人员的安全,应先按(),然后推上开关()。
参考答案:音响信号;开动行车
与我国陆上相邻和隔海相望的国家分别有( )
A.14个、6个
B.12个、5个
C.15个、6个
D.12个、4个
Many Chinese universities provided scholarships for students ______ financial aid.
A.in favour of
B.in honour of
C.in face of
D.in need of