JZ-7型空气制动机实施常用制动时,()不充不排,仍保持制动前的定压。A、作用风缸

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问题:

JZ-7型空气制动机实施常用制动时,()不充不排,仍保持制动前的定压。

A、作用风缸

B、降压风缸

C、工作风缸

D、紧急风缸

考点:轨道车司机考试高级轨道车司机高级轨道车司机题库
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阅读理解。

Dear Disney,

    Last weekend, the four members of my family spent an enjoyable holiday at the MagicKingdom - Disneyland. And one event made our visit seem truly magical.We got to the front of the line at Space Mountain, only to find out that our little daughter Gloria couldn't take her ice-cream on the ride. We were so excited that we all forgot ice-cream was not allowed on the ride.

   Gloria broke into tears and we all had no idea what to do. Then Murphy, one of the staff(员工) members, came over. She bent down and told Gloria that she would hold the ice-cream for her and give it to her when she finished the ride. Gloria said, "Promise?" Then she gave Murphy her ice-cream, and she completely enjoyed the ride.

    Sure enough, as we walked out the exit, there was Gloria's new friend with "her" ice-cream.Now you and I both know what happened, because we know that an ice-cream won't last twentyminutes on a summer afternoon in Florida. Murphy knew' what time we would get off the ride;she went to the nearest shop and bought a brand-new ice-cream thirty seconds before we walkedout the exit. Gloria said, "Thank you," but I'm sure she thought it was the same ice-cream.

    We know that someone tried hard to make our visit special. Thanks so much for goingabove and beyond!

                                                                                                                                          Your fan,

                                                                                                                                       Carmen Rivera

1. The family's visit to the Magic Kingdom was ________.                           

A. helpful         

B. awful            

C. frightening        

D. amazing

2. Before the ride, Gloria cried because _________.

A. she couldn't find her parents in the line      

B. she was too little to take the ride

C) she couldn't take her ice-cream on the ride  

D. she had to wait for twenty minutes

3. Murphy was waiting for Gloria ___________ after the ride.

A. in the ice-cream shop                      

B. at the exit

C. in the front of the line                      

D. at the entrance

4. In order to keep the promise, Murphy __________.

A. took Gloria to the nearest shop              

B. asked her new friend to help Gloria

C. helped Gloria get off the ride              

D. bought a new ice-cream for Gloria

5. The underlined word "someone" in the last paragraph refers to (指的是) _________.

A. Murphy          

B. Disney            

C. Gloria            

D. Carmen

6. Carmen Rivera wrote the letter to __________.    

A. order ice-creams                          

B. promise to visit again

C. express her thanks                        

D. give some suggestions

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10岁男孩。因发热1周于8月份入院。体检:表情淡漠,躯干部散在数枚淡红色斑丘疹,咽不红,颈部淋巴结数枚,黄豆大小,心肺无异常,腹胀,肝肋下3cm,脾肋下2cm。实验室检查:白细胞7×109/L,中性粒细胞65%,淋巴细胞30%,异形淋巴细胞8%,ALT70U/L,AST80U/L,2天前肥达试验阴性。

前最有意义的病原学检查是()

A.血培养

B.粪尿培养

C.肝炎病毒检测

D.肥达试验

E.EB病毒抗体检测

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学生经常叛逆,是内在的哪部分自我状态增强了()

A.内在儿童自我状态

B.内在成人自我状态

C.内在父母自我状态

D.以上都不是

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金属矿石类矿粉与()为互抵性货物,不能同舱装载。

A.玻璃

B.橡胶

C.焦炭

D.钢材

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2013年,世界太阳能发电装机容量()亿千瓦。

A.1.52

B.2.32

C.1.42

D.2.42

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