【判断题】在一般情况下,厂商得到的价格若低于平均可变成本就会停止营业。( )
【判断题】培训的效果具有后延性,即短期未必产生效益但可以产生较长的效益。()
【单选题】— He ought ot have been warned of the danger. — ____, but he wouldn't listen to me. [ ]
【单选题】I used a computer, _________it would have taken me much longer to finish thework.
【单选题】This poem makes you read ______.
【单选题】Beneath me on the other side of the hill was a circle of old stone _____.
【单选题】I felt the soil creep and ______ beneath me, like some monstrous serpent.
【单选题】一个 Java Application必须有一个主类包含 方法
【简答题】()是指按给的起始角度、终止角度,将曲线绕一轴线而生成的轨迹曲面。
【单选题】—Will you take these shoes? —No, they don’t fit me. Show me ________.