垂直式指示曲线的特点是当注水压力不断增大时,而注水量()。
A、逐渐下降
B、保持不变
C、迅速增加
D、上下波动
参考答案:B
(2007·辽宁高考)The crowd cheered wildly at the sight of Liu Xiang, who was reported ________ the world record in the 110meter hurdle race.
A.breaking
B.having broken
C.to have broken
D.to break
被后人传颂为“五岳归来不看山,黄山归来不看岳”,源自()对黄山的赞誉。
A.徐霞客
B.沈括
C.苏东坡
D.白居易