问题
单项选择题
（）不是堆码的必需要求。
A.方便
B.美观
C.牢固
D.整齐
答案
参考答案：B
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（）不是堆码的必需要求。
A.方便
B.美观
C.牢固
D.整齐
参考答案：B
完形填空(10分) Water is the "life blood" of our earth.Like air and sunshine, it is very important 1 living things.Without water, there can be 2 life on the earth.All animals and plants need water.Man also needs water.We need water to drink, to cook and to clean 3 .It even 4 the greater part of our bodies.Water is almost everywhere.Even in the 5 places of the world, there is water in the air.However, we can drink not seawater but fresh water.To make things even 6 , people often 7 to keep the water clean.They throw rubbish into rivers, lakes or seas.So not all the fresh water is 8 for us to drink.We're short 9 water.Something must be 10 to stop this.
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