下图为一个物体做直线运动的v-t图，若v1、a1表示物体在0～t1时间内的速度与加速
题型：单项选择题
问题：
下图为一个物体做直线运动的v-t图，若v1、a1表示物体在0～t1时间内的速度与加速度，v2、a2表示物体在t1～t2时间内的速度与加速度，下列说法正确的是（）
A.v1与v2方向相同，a1与a2方向相反
B.v1与v2方向相反，a1与a2方向相同
C.v1与v2方向相反，a1与a2方向相反
D.v1与v2方向相同，a1与a2方向相同
题型：单项选择题
阅读理解。
You are traveling in Inner Mongolia. You want to book a room in a hotel, but you don't know any
hotels. Look at the following two pages from a brochure (小册子). Then answer the questions.
1.Where is the Happy Holiday Hotel?
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2. How much will you pay if you want a double room for two days at the Grassland Hotel?
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3. How long are the restaurants at the Happy Holiday Hotel open for?
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4. Where should you stay if you want to ride a horse?
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5. Why are the double rooms more expensive at the Grassland Hotel?
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