【单选题】Communication satellites generally use solar cells as their source of electric power, although some test satellites have used thermoelectric generators.
【判断题】西安城墙是我国也是世界上保存最完整、规模最宏大的古代军事城堡。
【判断题】西安城墙是我国也是世界上保存最完整、规模最宏大的古代军事城堡,1961年被公布为首批全国重点文物保护单位
【简答题】两节课时间,请每位同学完成期末实践考核(一)Word 排版; 期末实践考核(二)表格设计与制作,为选做题。
【单选题】What phrase does the writer use to mark the point where he moves from dealing with Source A to Source B?
A.
It has been claimed that ...
C.
Source B considers that...
【简答题】(ii) Comment briefly on the use of its own tree plantations as a source of raw materials by Our Timbers Ltd. (3 marks)