AIS相比雷达,其优点是:()
A.天气与海况影响小
B.没有假回波
C.克服物标遮挡
D.以上都对
参考答案:D
— Hello, I _____ to ask if I can book two tickets for tonight's film.
— Sorry, we've already sold out. [ ]
A. phone
B. will phone
C. am phoning
D. have phoned
学校管理过程四个环节的相互关系,具体表现为()
A.有机结合
B.有序运行
C.相互渗透
D.相互促进
E.不断发展
F.螺旋式上升