题干

下列有关人和高等动物生命活动调节的叙述中,正确的是(    )

A:兴奋在细胞间传递时,突触前膜通过主动运输释放神经递质

B:由于机体免疫过强,过敏反应时常引起细胞损伤和组织水肿

C:内环境渗透压升高时,下丘脑水盐平衡中枢兴奋形成渴觉

D:学习是人和高等动物通过神经系统不断接受环境刺激形成新行为的过程

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D

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    Holiday makers wanting to get away from the pressure of modern life might consider staying at a wooden hut in Sweden.

    The Kolarbyn Eco-Lodge Hotel is not for everyone. If you can't even understand the idea of living without electricity, running water, or a modern toilet, then the charm of this place will probably not appeal to you. But for anyone trying to escape the pressure and busy life of the big city or take a break from the Internet and other modern devices, this place is a paradise(乐园). Located 1 km south of Skarsjon Beach, in the middle of a pristine Swedish forest, Kolarbyn Eco-Lodge consists of 12 wooden huts with nothing but two sheepskin-covered wooden beds, and a wood stove that uses wood cut by the guests themselves.

    Self-catering breakfast, lunch and dinner consist of items like spaghetti(通心粉), tomato sauce, bread, fruit and eggs that tourists have to cook themselves over an outside fire; there is no shower, only a nearby spring and as for toilet, visitors are encouraged to go behind a tree, or visit one of the two sheds(棚子).

    Adding to the charm of this place is the long coal-making tradition of Kolarbyn. Locals have been building these huts from wood and mud for over 400 years, and a few of them came up with the idea of recreating a few of them in the woods as an eco-lodge to keep tradition alive in the area.

    “People visit Kolarbyn lodges because they want to experience the nature and to test sleeping in the historical huts. They want to get away from the normal life,” the owner Andreas Ahlsen said. “The huts themselves are relatively small, as if they are too big , it will destroy the nature experience.”