【单选题】蒙台梭利认为儿童最主要的活动是 ( ) 。
【判断题】无人机与有人及相比,有以下发展优势:重量轻,尺寸小,费用低,机动性高,隐身性好,适应性强,安全性高。
【判断题】蒙台梭利认为儿童最主要的活动是游戏。( )
【简答题】低压断路器的额定电压是它在电路中长期工作的( )电压。
【简答题】低压断路器的额定电压是它在电路中长期工作时 。
【单选题】In the last sentence of the passage 'its private partner' refers to ______.
A.
the UN Office for Projects Services
B.
the University of Pennsylvania
C.
Global Technology Organization
D.
the UN Millennium Summit
【单选题】在一些网站为用户提供免费的网上行业产品信息和供求信息的发布服务,这种行为叫做()
【单选题】Passage Two Questions 22~26 are based on the following passage, UN officials pledged Thursday to bridge the world's digital divide, bringing computers and Internet training to poorer countries before ...
A.
the gap in technology and wealth between poor and rich countries
B.
inadequate training which technicians in poorer countries have received
C.
the availability of computer and Internet technologies to different nations
D.
the difference in the number of Web sites created in poor and rich countries