得分 一、综合题(共计100题)1、听力题：The ___ of a volcano is the area around it.2、What do we call the distance between two points?A. Length B. Width C. Height D. Depth 答案:A 3、选择题：What is the main ingredient in a smoothie?A. Ice B. Milk C. Fruit D. Sugar 4、听力...
2)Aircraft can avoid each other by going up and down, as well as by changingcourseto left or right. 3) The railway isin course ofconstruction. 1)the firstcoursein English 2)Normally, there is an examination at the end of thecourse. 1)2)飞机、轮船或水的)航道,航线 3)在…(过程中),...
（1）活塞密封圈磨损，（2）油路泄漏，（3）液控单向阀堵塞或磨损，（4）电磁球阀堵塞或磨损