【判断题】在一个密闭的容器中,有大小不同的两个水珠,长期放置后,会发生大水珠变大,小水珠变小。
【判断题】旅游是发展经济,增加就业和满足人民日益增长的美好生活需要的有效手段,旅游业是提高人民生活水平的重要产业。
【单选题】What did Scott want to do first?
A.
To take the railway to the top of the hill.
B.
To take a boat trip to see the ships.
C.
To visit the shops round the harbor.
【简答题】The first flights of the new airlines that will take tourists into space are ready to take off in 2012, and getting a seat on one is not all that different from booking a trip someplace on Earth. You ...
【单选题】Health comes first. We should ______ everyday to _____.
A.
take exercise, keep fit
B.
take exercises, keep fit
C.
take exercise, keep health
D.
take exercises, keep healthy
【单选题】若f(x)=ax,设f(x)+f(y)=f(z),则z=
【判断题】旅游业是提高人民生活水平的重要产业。( )
【判断题】旅游是发展经济,增加就业很满足人民增加日益增长的美好生活需要的有效手段,旅游业是提高人民生活水平的重要产业。