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【判断题】
多孔结构材料，其孔隙率越大，则绝热性和吸声性能越好。( )A.
正确
B.
错误
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【简答题】A bus stops at a small bus stop.A man is hungry and he wants to buy some cakes.It's raining hard.He doesn't want to go out in the rain.He sees a boy. “ Come here, boy ” He cries. “ Do you know how muc...
【简答题】A car stops at a small bus stop. A man is hungry and he wants to buy some cakes. It's raining hard, he doesn't want to go out in the rain. He sees a boy. "Come here, boy!" he cries. "Do you know how m...
【简答题】Tom is a little boy, and he is only seven years old. He often goes to the park and the fruit shop himself. Sometimes his mother takes him to the museum. One day he goes to a cinema. It is the first ti...
【简答题】A
bus stops at a small bus stop. A man is hungry and he wants to buy some cakes.
It’s raining hard. He doesn’t want to go out in the rain. He sees a boy. “Come
here, boy!” he cries. “Do you know how m...
【简答题】完形填空。 Look at the picture. The boy in the middle is my good friend, Li Lei. He is thir. He is a Chinese boy. He has a round face, two big eyes and a small nose. His hair is black. The other boy...
【简答题】阅读理解。 Sam is a little boy. He is only seven years old. One day, he goes to a cinema. It's the first time for him to go there. He buys a ticket and goes in. But after two or three minutes he comes out ...
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