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Welcome to our city—Nanning. It is a beautiful city with many trees and flowers. So it is called “Green City”. There are many nice places to visit. Come and enjoy your trip to Nanning. Place: Nanning Qingxiu Mountain Location: in the southeast of Nanning Attractions: green trees, special rocks, beautiful lakes and clean springs Price: 15 yuan(Adults) Opening time: 7:00—18:00 Place: Guangxi Science & Technology Museum Location: Minzu Avenue Attractions: robot show, Youth Science Studio, the high technology theater Price: 30 yuan(Adults) Free (Children below 1.40 m) Opening time: 9:30 —17:00 (Tuesday—Sunday) Monday (closed) Place: Nanning Zoo Location: in the west of Nanning Attractions: wild animals, dolphin show, Caribbean Water World Price: 50 yuan(Adults) 20 yuan (Children 1.20 m—1.40 m) Free (Childen below 1.20 m) Opening time: 8:00—17:00 Place: Zhongshan Food Street Location: Zhongshan Road Attractions: different kinds of local flavors(风味), Laoyou Noodles, snails and BBQ Opening time: 6:00p.m.—midnight 根据短文内容,选择最佳答案,并在答题卡上按要求作答。 小题1:If Tony likes robots, where do you advise him to go? A.NanningQingxiu Mountain. B.Guangxi Science & Technology Museum. C.Nanning Zoo. D.Zhongshan Food Street. 小题2:When is Nanning Qingxiu Mountain open for the visitors? A.At 6:30 am. B.At 10:00 pm. C.At 6:30 pm. D.At 10:00 am. 小题3:What can you do in Zhongshan Road? A.Enjoy the special rocks. B.Try delicious food. C.Watch the dolphin show. D.Learn the knowledge of technology. 小题4:Mrs. White wants to take her son Mike to the zoo. Mike is 1.30 meters tall now. How much will they pay? A.50 yuan. B.60 yuan. C.70 yuan. D.100 yuan. 小题5:From the passage, we know _________________. A.Nanning has some famous places to visit B.People in Nanning are friendly C.You can go to the museum on Monday D.You don’t have to pay for the ticket to Nanning Zoo if you are a child
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【单选题】发动机正常工作时的火花塞绝缘体裙部的温度应保持在( )
A.
100~150℃
B.
250~350℃
C.
400~600℃
D.
500~700℃
【简答题】某线路前级熔断器为RT0-200/200,熔体的额定电流为200A,后一级熔断器为RM10-200/160型,熔体额定电流为160A。在后一级熔丝出口发生三相短路电流为800A,试校验这两级熔丝能否满足保护选择性要求?
【单选题】精子的最后成熟是在( )内完成
A.
曲细精管
B.
直细精管
C.
睾丸
D.
附睾
【单选题】精子的最后成熟是在()内完成
A.
曲精细管
B.
直精细管
C.
睾丸
D.
附睾
【单选题】根据以下条件回答下列各题,地处西南某企业35kV电力用户具有若干l0kV变电站。所带负荷等级为三级,其供电系统图和已知条件如下: 1)35kV线路电源侧短路容量为500MVA。 2)35kV电源线路长15公里。 3)10kV馈电线路20回,均为截面积为l85mm2的电缆出线,每回平均长度l.3km。 4)35/10kV变电站向车间A馈电线路所设的主保护动作时间和后备保护时间分别为0和0.5s,当主...
A.
800A
B.
1000A
C.
1250A
D.
1600A
【单选题】下列关于轴承表述错误的是
A.
滑动轴承相对滚动轴承抗击性能好,但使用维护比较复杂
B.
轴肩是滚动轴承常用的轴向固定方式,轴肩的高度不能高于轴承内圈的厚度
C.
滚动轴承的组成零件都用滚动轴承钢制作,以保证轴承整体的工作性能
D.
7312B表示内径为60mm的角接触球轴承
【多选题】下列关于轴承的说法,正确的有()。
A.
径向滑动轴承的油槽一般应开在非承载区的上轴瓦内
B.
滚动轴承按滚动体形状基本上可分为球和滚子两类
C.
轴肩和轴承盖可兼起滚动轴承固定的作用
D.
整体式滑动轴承也可称为轴套
E.
滚动轴承都是成组使用的
【多选题】下列关于轴承的说法,正确的有( )。
A.
径向滑动轴承的油槽一般应开在非承载区的上轴瓦内
B.
滚动轴承按滚动体形状基本上可分为球和滚子两类
C.
轴肩和轴承盖可兼起滚动轴承固定的作用
D.
整体式滑动轴承也可称为轴套
E.
滚动轴承都是成组使用的
【简答题】某线路的计算电流为800A, 断路器的额定电流的整定值为____A,框架电流的整定值为____ ____A。
【单选题】精子的最后成熟是在 ( ) 内完成
A.
曲精细管
B.
副性腺
C.
睾丸
D.
附睾
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