单项选择题
A.当地的媒体认为,既然全国各地都有熊在森林周围出没,而这时他们应该还在睡觉,人们再过三个月也不能看到它们的踪影, B.当地的媒体宣布,全国各地都有熊在森林周围行走,而这时他们应该还在冬眠,人们要看到它们的踪影还得三个月以后。 C.当地媒体声称,全国各地都有熊在森林周围游荡.而这时他们本该还在冬眠,人们本该再过三个月才能看到它们的踪影。 D.据当地媒体报道,全国各地都有熊在森林里游荡,而这时他们应该还在休眠.人们本该再过三个月才能看到它们的踪影。
A.systems of pipes, bridges, and pyramids B.pipeline systems, bridges and farmlands C.water supply systems, bridges, and pipelines for cultivation D.water supply systems, bridges and structures
A.Early Civil Engineers B.Evidence of Early Human Civilization C.Ancient Architecture D.The History of Civil Engineering