环境的非使用价值，只能用______来评估。A．旅行费用法 B．隐含价格法 C．调查

（2008年·四川）在涉外民事诉讼中，管辖权是首要的问题。根据我国现行法律和司法解释，关于涉外管辖权，下列哪一选项是正确的？

A．在涉外民事案件中，中国法院不得根据原告的住所地行使管辖权

B．被告可以通过自己的行为接受中国法院的管辖

C．双方当事人均无法同意由对方国家的法院管辖的，可采用书面协议选择与争议没有实际联系的第三国法院管辖

D．当事人将争议诉诸法院的权利在任何情况下均不可剥夺

任一时刻房间瞬时得热量的总和未必等于同一时间的（）。

阅读理解。

     It was the first snow of winter-an exciting day for every child but not for most teachers. Up until now,

I had been old enough to dress myself, but today would need some help. Miss Finlayson, my kindergarten

teacher, had been through first snow days many times, but I think she may still remember this one.

     I managed to get into my wool snow trousers. But I struggled won my jacket because it didn't fit well.

It was a hand-me-down from my brother, and if made me wonder why I had to wear his ugly clothes, At

least my hat and scarf were mine, and they were quite pretty. Finally it was time to have Miss Finlayson

help me with my boots (靴子).

     In her calm, motherly voice she said, "By the end of winter, you will all be able to put on your own boots."

I didn't realize at the at the time that this was more a statement of hope than of confidence (信心).

     I handed her my boots and stuck out my foot. Like most children, I expected grown-ups to do all the

work. After much pushing, she managed to get first one into place and then, with a sigh, worked the second

one on too.

     I announced, "They're on the wrong feet."

     She struggled to get the boots off and went through the joyless task of putting them on again.

     "They're my brother's boots, you know," I said. "I hate them".

     Somehow, from long years of practice, she managed to act as though I wasn't an annoying (烦人的) little

girl, She struggle with me, she asked, "Now, where are your mittens (连指手套)?"

     I looked into her eyes and said, "I didn't want to lose them, so I hid them in the toes of my boots."

1. The little girl was more satisfied with her _____.

A. trousers

B. jacket

C. boots

D. hat

2. Miss Finlayson had difficulty with the girl's boots mainly because _____.

A. the girl got them from her brother

B. the girl put something in them

C. they were on the wrong feet

D. they did not fit the girl well

3. Why does the author Miss Finlayson would remember that first snow day?

A. Because the little girl was in her brother's clothes.

B. Because it was the most exciting day of the winter.

C. Because the little girl played a trick on her.

D. Because the little girl wore a pretty scarf.

4. We can learn from the text that Miss Finlayson _____.

A. was losing confidence in the little girl.

B. gradually lost patience with the little girl.

C. became disappointed with the little girl.

D. was getting bored with the little girl.

现在的城市不少公园内都有游乐设施，而一些较老的公园内，游乐设施由于使用时间长，出现生锈等老化的状况。在某公园，有一种叫“滑道”的大型游乐设施。在启动处，带动滑道转动的机器已经生锈了。而滑道简介显示，这个滑道建于1996年，已经使用了15年。结合上述材料和《特种设备安全法》，应如何解决游乐设施老化问题。

45钢表示平均含碳量为（）的优质碳素结构钢。