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问题 单项选择题

6个钉子_呻、Q、R、s、T和u放在7个不同的洞中，每一个钉子所占据的洞与其他钉子的不一样。这些洞按从左到右的顺序从1到7编号，且一条直线均匀分布。钉子的放置仅须遵从以下条件：(1)P和Q之间的距离与R和S之间的距离相同；(2)T和U相邻，但先后位置不一定；(3)最左边的那个洞不能空着。

若P和Q分别在2号和4号洞，则下面哪一项可能正确

A．R在3号洞。

B．R在5号洞。

C．S在6号洞。

D．U在1号洞。

答案

参考答案：A

解析：假如R在3号洞，则可令S在一号洞，因此R在3号洞是可能的，所以选A

单项选择题

以下肾内因素可引起肝肾综合征，除了（）。

A.RAAS

B.前列腺素

C.缩血管前列腺素

D.TXA2

E.血管舒缓素-激肽系统
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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

With modern gadgets, running out of juice happens to some of us more often, simply because today’s devices seem to suck up more juice than before. That’s why the Portable USB Power Supply comes in handy, being a best emergency charger for cell phones and other devices. Capable of holding a charge for up to three months when in standby, it will ship with adapter tips that cater for a certain variety of cell phone brands.
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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