飞机站位编码系统目的是:().A.便于给飞机上构件或附件定位。 B.针对某机型建立一

题型:单项选择题

问题:

飞机站位编码系统目的是:().

A.便于给飞机上构件或附件定位。

B.针对某机型建立一套立体坐标系统用于图纸标识。

C.方便飞机结构的模块化制造。

D.以上都是。

考点:民用航空器维修执照考试M11涡轮发动机飞机的结构与系统M11涡轮发动机飞机的结构与系统题库
题型:单项选择题

下列不是脂质体的制备方法的是()

A.冷冻干燥法

B.逆相蒸发法

C.饱和水溶液法

D.薄膜分散法

题型:单项选择题

妊娠4~6个月是手术治疗的最佳时机,必要时可施行限期手术。()

题型:单项选择题

必须用矿井统一规定信号指令进行工作联系,不准用其它方式()代替信号,以防混乱。

A、晃灯

B、敲管子

C、喊话

D、晃绳

题型:单项选择题

Recently, I flew to Las Vegas to attend a meeting. As we were about to arrive, the pilot announced with apology that there would be a slight (16) before setting down. High desert winds had (17) the airport to close all but one runway. He said that we would be (18) the city for a few minutes waiting to (19) . We were also told to remain in our seats meanwhile with our seat belts fastened (20) there might be a few bumps(颠簸). Well, that few minutes turned into about four-five minutes, including a ride that would make a roller coaster(过山车) (21) by comparison. The movement was so fierce that several passengers felt (22) and had to use airsickness bags. As you might guess, that’ s not a good thing to have happen in a(n) (23) space because it only (24) to increase the discomfort of the situation.
About twenty minutes into the adventure, the entire airplane became very (25) There was now a sense of anxiety and fear that could be (26) noticed. Every passenger simply held on for dear life …except one. A (27) was having a good time! With each bump of the (28) , he would let out a giggle (咯咯地笑)of delight. As I observed this, I (29) that he didn’t know he was supposed to be afraid and worried about his (30) . He neither thought about the past nor about the future. Those are what we gown--ups have learned from (31) . He was (32) the ride because he had not yet been taught to fear it. Having understood this, I took a deep breath and (33) back into my seat, pretending I was (34) on a roller coaster. I smiled for the rest of the flight. I even (35) to giggle once or twice, much to the chagrin(随恼) of the man sitting next to me holding the airsickness bag.

The underlined word "rainbow" in the sixth paragraph refers to______.

A.the rainbow in the sky

B.the stripes on the pavement

C.something imaginative and fun

D.important lessons learned in childhood

题型:单项选择题

关节沿垂直轴进行的运动是()

A.环转运动

B.内收和外展

C.旋内和旋外

D.屈和伸

E.滑动

更多题库