系统-自动飞行关于ALPHAFLOOR保护,下列说法正确的是?()
A: ELAC产生一个信号来触发ALPHA FLOOR保护方式,进而设置发动机TOGA推力
B: 减速期间,低能量语音警戒先于ALPHA FLOOR触发(除非ALPHA FLOOR由于操纵杆偏转而触发)
C: 若两个无线电高度表都失效,则ALPHA FLOOR保护被抑制
D: 当飞机迎角减小速度增大时且改出ALPHA FLOOR保护时,TOGA推力自动断开恢复原先工作状态
A: ELAC产生一个信号来触发ALPHA FLOOR保护方式,进而设置发动机TOGA推力
B: 减速期间,低能量语音警戒先于ALPHA FLOOR触发(除非ALPHA FLOOR由于操纵杆偏转而触发)
C: 若两个无线电高度表都失效,则ALPHA FLOOR保护被抑制
D: 当飞机迎角减小速度增大时且改出ALPHA FLOOR保护时,TOGA推力自动断开恢复原先工作状态
举一反三
- which floor does she stay? A: first floor B: second floor C: third floor D: fourth floor
- `\alpha _j`为四阶行列式D的第j列,(j=1,2,3,4,),且D=-5,则下列行列式中,等于-10的是( ) A: \[\left| {2{\alpha _1},2{\alpha _2},2{\alpha _3},2{\alpha _4}} \right|\] B: \[\left| {{\alpha _1} + {\alpha _2},{\alpha _2} + {\alpha _3},{\alpha _3} + {\alpha _4},{\alpha _4} + {\alpha _1}} \right|\] C: \[\left| {{\alpha _1},{\alpha _1} + {\alpha _2},{\alpha _1} + {\alpha _2} + {\alpha _3},{\alpha _1} + {\alpha _2} + {\alpha _3} + {\alpha _4}} \right|\] D: \[\left| {{\alpha _1} + {\alpha _2},{\alpha _2} + {\alpha _3},{\alpha _3} + {\alpha _4},{\alpha _4} - {\alpha _1}} \right|\]
- 设`n\times 3`的矩阵`A`的秩为3,则下列向量组线性无关的是( ) A: `\alpha _1 + \alpha _2,\alpha _2 + \alpha _3,\alpha _3 + \alpha _1`; B: `\alpha _2 - \alpha _1,\alpha _3 - \alpha _2,\alpha _1 - \alpha _3`; C: `\alpha _1 + \alpha _2 + \alpha _3,\alpha _3 - \alpha _2, - \alpha _1 - 2\alpha _3`; D: `2\alpha _2 - \alpha _1,2\alpha _3 - \alpha _2,\alpha _1 - \alpha _3`.
- In the UK, the first floor is actually called “ Floor”, while the second floor is called “First Floor”. A:
- 若`\alpha _1,alpha _2,alpha _3,beta _1,beta _2`都是四维列向量, 且四阶行列式`\| alpha _1,alpha _2,alpha _3,beta_1 | = m,| alpha _1,alpha _2,beta_2,alpha _3 | = n` 则`\| 2alpha _1,2alpha _2,2alpha _3,2(beta_1+beta_2) | =` ( ) A: `\ (m+n)` B: `\ 8(m-n)` C: `\ 8(m+n)` D: `\ (m-n)`