发动机滑油系统都包括哪些分系统?()A.供油系统 B.回油系统 C.增压系统和通气系

题型:单项选择题

问题:

发动机滑油系统都包括哪些分系统?()

A.供油系统

B.回油系统

C.增压系统和通气系统

D.以上都有

考点:航空发动机装配工航空发动机装配工题库
题型:单项选择题

阅读对话,判断下列句子正 ( T) 误 (F) 。

Grace: How did you like Tokyo?     .

Martin: Oh,  very much.  It's a wonderful city.

Grace: What about Kyoto? Did you go there, too?

Martin: Yes, we did.

Grace: What was it like?

Martin: Fantastic, It's older and smaller than Tokyo, And it's more historical (历史悠久的).

Grace: Which city did you like better?

Martin: Well, I think I like them both,  Tokyo is more exciting but Kyoto is more interesting,

Grace: How about your partners? Are they good guys to travel with?

Martin: Frank was fantastic. He's easy-going and cheerful. He was much better than Ben.

Grace: Really? What was wrong with Ben?

Martin: Well, he complained (抱怨) all the time, about the food, about the transportation ... about

            everything! He missed his girlfriend and wanted to come back. So he was always depressed.

Grace : Oh, that was really bad ...

( ) 1. Martin went to Japan with two travel partners.                          

(     ) 2. Tokyo is more exciting and historical than Kyoto.                        

(     ) 3. Ben went to Tokyo to see his girlfriend.                                

(     ) 4. Frank was a better partner than Ben.                                    

(     ) 5. Ben was a pain because he was not easy-going.                          

题型:单项选择题

下面程序的功能是计算折旧年限,假设一台机器原价值为100万元,如果每年的折旧率为4%,多少年后它的价值不足50万元。
y=0
p=100
x=0.04
Do
p=p*______
y=y+1
Loop Until P<50
MsgBox y

A) x
B) (1-x)
C) (1+x)
D) 1-x

题型:单项选择题

全口义齿初戴时,就位困难的原因很多,除了()

A.组织面有小瘤

B.基托局部有明显倒凹

C.一侧上颌结节过大

D.两侧上颌结节过大

E.基托变形

题型:单项选择题

下列温度最接近脱氢反应停止时温度的是()。

A.150℃

B.250℃

C.350℃

D.450℃

题型:单项选择题

电动机长期停用需重新启用时,可直接启动。

更多题库