当船舶沿计划航线保向保速航行，利用两物标方位定位，正确的船位

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问题单项选择题

当船舶沿计划航线保向保速航行，利用两物标方位定位，正确的船位具有以下哪些特点（）

A．船位点沿直线分布

B．船位间距离与观测时间间隔成正例

C．船位间距离与观测时间间隔成反例

D．A＋B

答案

参考答案：D

解答题

已知一次函数y=kx+b的图象和函数y=4x+6的图象互相平行，并且过点（-3，8），求这个函数的解析式。

句型转换

根据所给的汉语提示，转换下列句型。

1. Is there an interesting place to visit? Could you tell me? (合并为一句)

Could you tell me _____ _____ an interesting place to visit?

2. Why don't we go to an art museum? (改为同义句)

_____ _____ go to an art museum?

3. You learnt about not only computers but also science. (改为同义句)

You learnt about computers, _____ _____ _____ learn about science.

4. A different rock band plays at Uncle Bob's every night. (对画线部分提问)

_____ does a different rock band _____ every night?

5. They can eat good food at the Farmer's Market,

and the food there is both delicious and cheap. (改为复合句)

They can eat good food at the Farmer's Market _____ the food is both delicious and cheap.