【单选题】水星距离太阳( )公里,是太阳系中离太阳最( )的行星。
【单选题】I would like to take this opportunity to express my sincere ______ of your help.
【简答题】我国将一年划分为个()节气。在太阳系八大行星中,距离太阳最远的行星是()。
【单选题】I would greatly _____ it if you could send me the letter as soon as possible. [ ]
【单选题】It is predicted that people who will live on other planets would have to ______.
A.
appreciate the harsh conditions they encounter there.
B.
depend on the natural resources available there.
C.
take most daily necessities along with them.
D.
engage in scientific research.
【判断题】IP数据报格式中,段偏移字段指出了本片起始位置在原IP分组的数据区中的偏移量。( )。
【判断题】导游要有强烈的证件安全意识,必要时全陪、地陪也可以保管旅游者的证件。( )