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【单选题】
为了兼顾乘员的舒适性,对旅客机座舱高度变化率的要求是
A.
上升率≯500英尺/分,下降率≯350英尺/分.
B.
上升率≯350英尺/分,下降率≯500英尺/分.
C.
升降率≯500英尺/分.
D.
350英尺/分≤升降率≤500英尺/分.
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举一反三
【简答题】如果某一整数规划: MaxZ=X 1 +X 2 X 1 +9/14X 2 ≤ 51/14 -2X 1 +X 2 ≤ 1/3 X 1 ,X 2 ≥ 0 且均为整数 所对应的线性规划(松弛问题)的最优解为 X 1 =3/2 , X 2 =10/3 , MaxZ=6/29 ,我们现在要对 X 1 进行分枝,应该分为 和 。
【单选题】Chart/Publication correction record Card system ensures that every chart is properly corrected().
A.
in use
B.
prior to use
C.
after use
D.
When chart received on board
【多选题】有抗渗要求的混凝土应优先选用( )。[5分][5分]
A.
矿渣水泥
B.
普通硅酸盐水泥
C.
粉煤灰水泥
D.
火山灰水泥
【判断题】整数 x 进行 x % 2 == 0 的结果为 True ,则一定表示 x 是奇数。
A.
正确
B.
错误
【单选题】Chart correction record card system ensures that every chart is properly corrected .
A.
in use
B.
prior to use
C.
after use
D.
when chart received on board
【单选题】A revised print of a chart is made ______.
A.
after every major hydrographic survey of the area covered by the chart
B.
when there are numerous corrections to be made or the corrections are extensive
C.
when a low-stock situation occurs and minor corrections are made
D.
every two years to update the magnetic variation information
【单选题】Chart/Publication Correction Record Card System ensures that every chart is properly corrected .
A.
in use
B.
after use
C.
prior to use
D.
when chart received on board
【单选题】中国高速铁路无砟轨道的轨距标准是( )。
A.
1430mm
B.
1435 mm
C.
1420 mm
D.
1425mm
【单选题】Chart/Publication Correction Record Card system ensures that every chart is properly corrected
A.
in use
B.
prior to use
C.
after use
D.
when chart received on board
【单选题】甲反对女儿乙与丙的婚事,多次殴打、禁闭乙。乙不堪忍受,上吊自杀。下列关于甲的行为表述中正确的是( )
A.
甲构成故意杀人罪
B.
甲构成故意伤害罪
C.
甲构成暴力干涉婚姻自由罪
D.
对于甲的行为,告诉的才处理
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