“Was Andrew there when you arrived?” “Yes, but he ______ home soon afterwards.” A. had gone B. has gone C. is going D. went
下列各句中,没有语病的一句是 ( ) A.我国在明年上半年发射的环境卫星,将与现有的地面环境监测网络共同组成立体环 境监测体系,为环境保护提
(7分)某温度时,在2L容器中X、Y、Z三种物质随时间的变化关系曲线如图所示。1.由图中的数据分析,该反应的化学方程式为
2010年“两会”召开前,《南方日报》刊登“以脚议政”才能克服“拍脑袋决策”的署名文章。文章指出,在利益群体纷杂、利益冲突纠结的当下,“两
血液从主动脉到右心房流经的途径是 A.肺循环 B.体循环 C.肺循环——体循环 D.体循环——肺循环
On “Super Bowl Sunday”, millions of Americans are glued to their TVs. They are eating pizza, chicken wings and chips and cheering every move. They’re watching the Super Bowl. Why are Americans
If my frirends have any problems, my door is ______ open to them. A. never B. seldom C. sometimes D. always
函数y=|x+1|+|x+3|的最小值为( ) A.2 B. C.4 D.6