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综合应用 People live around the world. They like to have celebrations. In China, people celebrate New Year. New Year is in January or February. They wear red clothes because red is the color that will bring joy. Chinese children get money in red envelopes for the new year. In Gambia(冈比亚 ) ,people celebrate Independence Day(独立日). It is in February. They wear bright clothes and play music at the celebration. In England, people celebrate May Day. May Day is in May. They wear pretty clothes to celebrate the coming spring. The children like to dance on this day. In America, people celebrate Thanksgiving Day. It's in November. They have a very big dinner with their families or friends. They eat turkeys and a lot of other delicious food. They have a long talk after the dinner. Celebrations Around the World 1 Celebrations Months Clothes China New Year January or February 2 Gambia Independence Day 3 bright clothes England 4 May pretty clothes 5 Thanksgiving Day November 1. 2. 3. 4. 5.
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【简答题】列方程计算. (1)比X的4倍少11的数是25. (2)X的2倍减去2.6与4的积,差是10.
【简答题】列方程计算. (1)比x的4倍少11的数是25. (2)x的2倍减去2.6与4的积,差是10.
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A.
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A.
条件(1)充分,但条件(2)不充分。
B.
条件(2)充分,但条件(1)不充分。
C.
条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分。
D.
条件(1)充分,条件(2)也充分。
E.
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A.
B.
C.
D.
E.
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A.
数x与数y的平方和:x 2 +y 2
B.
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C.
x的3倍与y的4倍的和:3x+4y
D.
x除以3的商与4的和的平方:
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A.
x÷2-4
B.
(x-4)÷2
C.
2x-4
【简答题】8x2+10xy-3y2是49的倍数。 (1)x,y都是整数 (2)4x-7是7的倍数
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