题型:问答题 Had I known about this computer program, a huge amount of time and energy _____. [ ]A. would have been savedB. had been saved C. will be saved D. was saved 查看答案
题型:问答题 下列做法不符合可持续发展原则的是[ ]A、青藏铁路有150千米的路段实施“以桥代路”工程B、北京发展以电子、信息为龙头的高技术产业C、大力推广一次性筷子D、从2008年6月1日开始,南海实施两个月的伏季休渔期 查看答案