---I heard you almost missed the train. ---Yes. I got to the railway station with only five minutes to . A. leave B. make C. catch D. spare 答案:D 考查动词词义辨析。句意:我到底火车站时只剩5分钟。 以下是我们熟悉的几种气体,其中可用下图所示装置干燥并收集的是( )(省略了铁架台等仪器)①H2 ②O2 ③CO2 ④SO2 ⑤CH4.A.①②B.③④C.①⑤D.①②⑤