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【多选题】
以下关于需求定律的说法,哪些是正确的
A.
在其他条件不变的情况下,某种商品的需求量与价格成反方向变化
B.
需求定理指的是一般商品的规律,但这一定理也有例外
C.
在任何条件下都成立
D.
商品的价格越低,需求量越小
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【判断题】Thirty-seven years after his sudden death, a lifelike figure of Bruce Lee was unveiled at Madame Tussaud’s wax museum in Hollywood in 2010. He is not only remembered for the movies and TV shows in whi...
A.
正确
B.
错误
【单选题】在正项等比数列{a n }中,a 1 和a 19 为方程x 2 -10x+16=0的两根,则a 8 ?a 10 ?a 12 等于(  )
A.
16
B.
32
C.
64
D.
256
【判断题】Thirty-seven years after his sudden death, a lifelike figure of Bruce Lee was unveiled at Madame Tussaud’s wax museum in Hollywood in 2010. He is not only remembered for the movies and TV shows in whi...
A.
正确
B.
错误
【简答题】网络的基本功能有哪些?
【判断题】Thirty-seven years after his sudden death, a lifelike figure of Bruce Lee was unveiled at Madame Tussaud’s wax museum in Hollywood in 2010. He is not only remembered for the movies and TV shows in whi...
A.
正确
B.
错误
【简答题】They            all the details of the plan time and again to make sure that the project went smoothly. A . got through         B . went through       C . got over              D . dipped into
【简答题】计算机网络的基本功能有哪些?
【单选题】等比数列{a n }中,a 1 +a 2 =8,a 3 -a 1 =16,则a 3 等于(  )
A.
20
B.
18
C.
10
D.
8
【单选题】下列计算正确的是(  )
A.
a+a 2 =2a 2
B.
a 5 ?a 2 =a 10
C.
(-2a 4 ) 4 =16a 8
D.
(a -1 ) 2 =a -2
【判断题】Thirty-seven years after his sudden death, a lifelike figure of Bruce Lee was unveiled at Madame Tussaud’s wax museum in Hollywood in 2010. He is not only remembered for the movies and TV shows in whi...
A.
正确
B.
错误
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