问题
问答题 简答题
送风机油箱电加热器起何作用？
答案
参考答案：
提高润滑油温，因为油温低时粘度大，影响油泵工作和轴承润滑.
搜题请搜索小程序“爱下问搜题”
送风机油箱电加热器起何作用？
参考答案：
提高润滑油温，因为油温低时粘度大，影响油泵工作和轴承润滑.
完形填空（共15小题，每小题2分，满分30分） 阅读下面短文，掌握其大意，然后从1—15各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。 As she walked round the large shop, Edith realized how difficult it was to choose a suitable Christmas __1__for her father. She __2__that he were as easy to please as her mother, who was __3__satisfied with perfume(香水). Besides, shopping at this time of the year was a most unhappy job. People stepped on your feet, pushed you with their shoulders and almost __4__ you over in their hurry in order to __5__ something cheap ahead of you. Partly to have a rest, Edith paused in front of a counter（柜台）, where some beautiful ties were on __6__. "They are __7__silk," the shop assistant told her with a smile trying to __8__her to buy one. But Edith knew from past __9__that her choice of ties hardly ever pleased her father. She moved on slowly and then, quite by chance, stopped where a small crowd of men had gathered round a counter. She found some fine pipes(烟斗) on sale and the __10__were very beautiful. Edith did not hesitate for long, although her father __11__ smoked a pipe once in a while, she believed this was __12__ to please him. When she got home, with her small but __13__present hidden in her handbag, it was time for supper and her parents were already at table. Her mother was in great __14__. "Your father has at last decided to stop smoking," she told her daughter happily. Edith was so __15__that she could not say a single word.
|