【判断题】全球有4大卫星定位系统,分别是:美国的 GPS 卫星定位系统、俄罗斯的格洛纳斯导航系统、欧盟伽利略系统、中国北斗导航系统。
【判断题】运载火箭是由多级火箭组成的航天运载工具。
【单选题】中国、俄罗斯、美国和欧盟都发展了自己的全球卫星定位系统。下列选项中,国家或组与卫星定位系统对应正确的是( )
【简答题】美国的卫星定位系统是________,中国的卫星定位系统是___________。
【简答题】From his _____ voice, I have to say that he is really _____. A.disappointing; disappointed B.disappointed; disappointing C.disappointing; disappointing D.disappointed; disappointed
【单选题】国际物流运输中最普遍的运输方式是
A.
prefix = span style="font-family / 公路运输
B.
prefix = span style="font-family / 铁路运输
C.
prefix = span style="font-family / 航空运输
D.
prefix = span style="font-family / 海上运输
【简答题】GPS是美国的卫星定位系统的简称,目前在运行和正在研制、即将运行的卫星定位系统主要还有俄罗斯的()、欧盟的()、中国的()。
【单选题】It is lunehtime at the Chateau de Bellerive, Prinee Sadruddin Aga Khan's home on Lake Geneva. His guests are being served the elegant food associated with the prince's kitchen. But the prince and his ...
A.
he had a humble tastes.
C.
he intended to show his sympathy with poor people in the world.
D.
he didn't want to show off his richness to his guests.