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读南极洲等高线图（左图）和南极洲4个气象站气温曲线图（右图），回答下列小题。

东方站各月气温都比南极点低，主要原因是东方站（）

A.纬度比南极点高

B.海拔比南极点高

C.受副极地低气压带控制

D.终年盛行西北风

答案

参考答案：B

解析：

根据左图可知，图中东方站的海拔在3000米至4000米之间，而南极点的海拔在2000米至3000米之间，故东方站的海拔高于南极点，海拔越高，气温越低。

单项选择题

牙周炎时引起牙齿松动的因素不包括()

A．牙槽骨吸收

B．咬合创伤

C．牙周韧带急性炎症

D．牙周袋形成

E．A+B+C+D
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阅读理解

Froli Cat Dart

While cats require less attention compared to dogs, that doesn’t mean you can just leave them at home all day long. No sir, they too, need some level of attention and will have to keep themselves occupied mentally and physically too. Well, FroliCat Dart makes it possible. Just what is the FroliCat Dart all about? Well, for starters, this device delivers 360° rotation (旋转) that will project laser patterns on the floor, letting your feline (猫科动物) friend chase after it.
Portable USB Power Supply

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Battery Powered Gloves

For those living in the northern hemisphere(半球)，we are pretty sure that you have already stocked up on your winter supplies to make sure you remain nice and warm throughout the upcoming freezing months. Well, wearing a pair of the Battery Powered Hand Warming Gloves is necessary so as to keep your palms and fingers warm. These gloves come with battery-powered integral (不可缺的) heating elements which is capable of keeping your hands nice and warm for up to eight hours. It requires a quartet of AA batteries in each glove, and since both gloves are fully lined with a waterproof, breathable material, they might just come in handy during your next snowball fight. Too bad it comes only in one color—black.
小题1:How does FroliCat Dart work?
A．It can make cats run around your house.
B．It can project laser patterns to make cats chase.
C．It can make cats much sleepier than before.
D．It can provide food and drink for cats.
小题2:From the second paragraph, we know that________
A．Lack of power happens to some of us less often than before.
B．The adapter tips cater for all kinds of cell phone brands.
C．The Portable USB Power Supply can charge for some phones.
D．The Portable USB Power Supply can only last for three months.
小题3:Where do the Battery Powered Gloves sell well?
A. Iceland        B. India       C. Australia      D Singapore
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