6135型柴油发动机活塞上部与气缸壁之间使用极限配合标准间隙，为_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

6135型柴油发动机活塞上部与气缸壁之间使用极限配合标准间隙，为（）。

A、0.75mm

B、0.5mm

C、0.6mm

D、0.75mm

答案

参考答案：B

完形填空

Chinese Spring Festival marks the first day of a new year, so the first meal is rather important. People from the North and the South have different 26 about the foods they eat on this 27 day. In Northern China, people 28 eat Jiaozi. The word Jiaozi in Chinese means the 29 and the beginning of time. According to historical 30 , in the past people from the North and the South both ate Jiaozi on Chinese New Year’s Day. Perhaps 31 the areas in Southern China 32 more rice than those in Northern China, southern people slowly 33 to eat many other kinds of food on New Year’s Day. 34 , the most common foods for the first 35 are noodles, New Year Cake and Tangyuan. The noodle 36 long life. The New Year Cake is called Niangao in Chinese, which 37 the hope of improvement in 38 year after year. Tangyuan is a symbol of 39 according to the Chinese.
To 40 a New Year visit to relatives and friends is an important activity during the Spring Festival. People also send cards to 41 a New Year’s greeting. What children love most is to set off firecrackers. 42 , as the pace of life is becoming faster and faster, people have 43 new ways to celebrate the Chinese traditional New Year. For example, many people no longer send out greeting cards. 44 , they use short messages or emails. Also to travel during the New Year holidays has come into 45 .

B．unforgettable

C．Consequently

B．Unfortunately

B．Fortunately

D．Furthermore

单项选择题 A1/A2型题

医学伦理学公正原则的本质是对病人（）。

A.充满爱心

B.细心负责

C.一视同仁

D.耐心周到