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【简答题】
The condition of being relatively slow in mental, emotional, or physical development
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【简答题】Track6-3 The Psychology of Selling Do you ever go for one thing, and then buy other things you don’t need? Lots of people do. In fact, many stores use certain techniques so we buy more. Here’s how: On...
【简答题】设u(x,y)∈C 2 (Ω)∩C( ),且满足 并且当y→+∞时,u(x,y)→0对x∈[0,1]一致地成立.证明 其中C>0为常数.
【简答题】Everybody knows that colors are connected with certain feelings. For example, why do some people paint the walls of their rooms yellow and others pink? The same is true in stores. They want us to feel...
【单选题】Certain colors when incorporated into the décor of a room can produce a cozy atmosphere.
A.
light
B.
roomy
C.
cluttered
D.
comfortable
【简答题】阅读理解。 Scientists think that most animals can't see colors. The world is black and white to them. To find out if dogs could see colors, scientists gave dogs food every time they played a certain piece ...
【简答题】已知点P(x,y)是第一象限内的一个动点,且满足x+y=4. 请先在所给的平面直角坐标系中画出函数y=2x+1的图象,该图象与x轴交于点A,然后解答下列问题: (1)利用所画图象,求当-1≤y≤3时x的取值范围; (2)若点P正好也在直线y=2x+1上,求点P的坐标; (3)设△OPA的面积为S,求S关于点P的横坐标x 的函数解析式。
【单选题】不属于液化石油气供应基地选址原则的是( )。
A.
站址应选择在地区全年最小频率风向的上风侧
B.
具有良好的市政设施条件,运输方便
C.
与相邻建筑物应遵守有关规范所规定的安全防火距离
D.
站址应在城市边缘,与服务站之间的平均距离不宜超过20kin
【单选题】已知 x+y-1≤0 x-y+1>0 y≥-1 ,且u=x 2 +y 2 -4x-4y+8,则u的最小值为(  )
A.
3 2 2
B.
9 2
C.
2 2
D.
1 2
【简答题】When a person is born, he/she has a set of personalities that make him/her different from others. Psychologists believe that colors are sometimes a good way to (1) ____ how a person behaves and the wa...
【多选题】属于液化石油气供应基地选址原则的是( )。
A.
站址选择在地区全年最小频率风向的上风侧
B.
与相邻建筑物应遵守有关规范所规定的安全防火距离
C.
具有良好的市政设施条件,运输方便
D.
站址应在城市边缘,与服务站之间的平均距离不宜超过20km
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