当急性梗阻时，肾功能还未出现明显损伤，此时肾图可出现的图形是()A.持续上升型  B

About ten men in every hundred suffer from color blindness in some way. Women are luckier, only about one in two hundred is affected in this matter. Perhaps, after all, it is safer to be driven by a woman!

There are different forms of color blindness. In some cases a man can not see deep red. He may think that red, orange and yellow are all shades of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green - a strange world indeed.

Color blindness in human beings is a strange thing to explain. In a single eye there are millions of very small things called “cones”. These help us to see in a bright light and to tell difference between colors. There are also millions of “rods” but these are used for seeing when it is nearly dark. They show us shape but no color.

Some insects have favorite colors. Mosquitoes (蚊子) like blue but do not like yellow. A red light will not attract insects, but a blue lamp will. In a similar way human beings also have favorite colors. Yet we are lucky. With the aid of the cones in our eyes we can see many beautiful colors by day, and with the aid of the rods we can see shapes at night. One day we may even learn more about the invisible (看不见的) colors around.

小题1:Why do some people say it is safer to be driven by women?

A．Women are more careful.

B．There are few color-blind women.

C．Women are fonder of driving than men.

D．Women are weaker but quicker in thinking小题2:This passage is mainly about ________.

A．color and its surprising effects

B．women being luckier than men

C．danger caused by color blindness

D．color blindness小题3:According to the passage, with the help of the “cones”， we can ________.

A．tell orange from yellow

B．see in weak light

C．kill mosquitoes

D．tell different shapes小题4:We can attract and kill mosquitoes by using a ________.

A．red light

B．yellow light

C．blue light

D．green light

为发挥最大制动作用，使用驻车制动器时不可将操纵杆一次性拉紧。

1666年伦敦大火以后，建筑师雷恩(C. Wren)为伦敦做的改建规划方案是效仿( )布局手法。

A．古希腊米利都(Miletus)城
B．古罗马城
C．阿尔伯蒂舱建锄中设计的“理想城市”
D．法国凡尔赛花园

总转化率设计值为（）

A、≥99.5％

B、≥99.6％

C、≥99.7％

D、≥99.8％

黎巴嫩作家纪伯伦所代表的流派是（）

A.埃及现代派

B.旅美派

C.新感觉派

D.战后派