【单选题】听力原文:W: When is the earliest flight from Washington to New York? M: There is a shuttle at six, and if that's full, there's another at seven. Q: What can be inferred from the conversation? (19)
A.
The woman has a choice of early flights.
B.
Not many planes go to Washington.
C.
The woman should take the earlier flight.
D.
The six o'clock flight is already filled.
【单选题】听力原文:When is the next train to Shanghai? (5)
【单选题】听力原文:W: When is the library open on Saturdays? M: From 8 am to 6 pm. How long is the library open on Saturdays?
【单选题】组织市场需求的波动幅度( )消费者市场需求的波动幅度。
【简答题】让学生掌握的基本结构的教学原则包括________、结构原则、程序原则、强化原则。
【单选题】RGB彩色LED控制模块实验中,RGB彩色如果 R 对应的引脚为高电平,则8 颗 LED 显示为什么颜色? G 引脚为高,则显示为什么颜色?B 引脚为高,则显示为什么颜色?
【判断题】组织市场需求的波动幅度大于消费者市场需求的波动幅度
【单选题】下列关于导游人员为防止游客走失的说法中,不属于在游客自由活动时应提醒内容的( )。