真空法测定沥青混合料的理论最大相对密度，若抽气不干净，测得的结果将偏小；若试样不干燥

句型转换。

1. We call it a kid. (就划线部分提问) 

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2. Those are shops. (就划线部分提问)

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3. I have one maths lesson on Monday. (就划线部分提问) 

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4. They are elephants. (单数) 

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5. Is that little bird nice? (肯定句)

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6. There are some balloons in the classroom. (一般疑问句) 

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7. There is some water in the bottle. (否定句) 

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8. Please read English now. (否定句) 

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9. I am ill today. (一般疑问句) 

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10. We often go to the park on Monday. (一般疑问句)

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下列物体中属于光源的是（　　）

A．月亮

B．红宝石

C．恒星

D．电影银幕

若心搏量不变心率加快则使收缩压升高。

教育的文化功能主要包括哪些内容

如果其他因素不变，下列会使看跌期权价值下降的有（）。

A.股票价格上升

B.执行价格提高

C.股价波动率增加

D.预期红利下降