双列向心球轴承可承受较大的轴向载荷。

题型:判断题

问题:

双列向心球轴承可承受较大的轴向载荷。

考点:司泵工考试化工司泵工化工司泵工题库
题型:判断题

THE FOOD FESTIVAL
       Date
April 23,24 and25
Place
Hall 5,International Center
 
Time
April 23: 12:00 a.m.—4:00 p.m.
April 24: 10:00 a.m.—3:00 p.m.
April 25: 8:00 a.m.—2:00 p.m.
 
Price
Adults: $12
Seniors(65+): $11
Kids under 12: free (when they come with an adult)
You can buy tickets at the door or online. All tickets
Online are $11.
根据短文内容,选择正确的答案。
小题1:How long will the festival last?
A.Only one day.B.Two days.C.Three days.D.Four days.
小题2:Mrs.White plans to buy tickets for her ten-year-old son and herself online. How much should she pay in total?
A.$11B.$12C.$23D.$22
小题3:If you only have time before 10:00 a.m. when should you go to the food festival?
A.On April 23.B.On April 24.C.On April 25.D.On April 26.
小题4:Which of the following is TRUE?
A.The food festival is held in Hall 3,International Center.
B.The food festival will last six hours on April,25.
C.Mrs.Black,67 years old, should pay $12 for the ticket for the food festival.
D.We can only get the tickets online.
小题5:Where is this material probably from?
A.A storybook.B.A TV program.C.A film.D.A poster.
题型:判断题

下列现象,是由大气的散射作用造成的是( )

A.多云的夜晚比晴朗的夜晚温暖

B.傍晚的天空出现漂亮的晚霞

C.地球生物免受紫外线的伤害

D.深秋的晴夜易出现霜冻

题型:判断题

如下图所示,在北戴河旅游景点之一的南戴河滑沙场,有两个坡度不同的沙坡滑道AB和AC(都可以看作斜面),甲、乙两名旅游者分别乘坐两个滑沙撬从坡顶同一水平线上由静止滑下,最后都停在水平沙面CD上.设滑沙撬和沙面间的动摩擦因数μ处处相同,滑沙者保持一定姿势坐在沙撬上不动,请回答:

(1)他们滑到各自的坡底B点和C点时的速度是否相同?

(2)他们停下的位置距离坡顶的水平距离是否相同?

题型:判断题

药物引起机体器官或组织生理生化异常和病理变化,一般情况下具有明显的剂量—反应关系,停药后有的可逐渐消退也可造成不可逆损害的现象是指()

A.副作用

B.停药综合症

C.变态反应

D.毒性反应

题型:判断题

下列各种细胞工程技术培育生物新产品的操作过程中不可能形成愈伤组织的技术是______。

A.细胞和组织培养
B.植物细胞融合
C.动物克隆
D.细胞核移植

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