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问题 读图填空题

下图为青蛙发育过程的四个阶段：

(1)青蛙的生殖和发育都必须在________中进行。

(2)青蛙的发育顺序是________________(用序号表示)。

(3)青蛙处于①阶段时，用________呼吸，④阶段时的运动方式是_______。

(4)下列不是变态发育的动物是______。

A．蛇  B．大鲵  C．蟋蟀  D．蝴蝶

答案

(1)水

(2)③④②①

(3)肺和皮肤      游泳

(4)A

阅读理解
阅读理解。
IMAGE PRODUCT INFORMATION

Talking Travel Companion    		Travel with a perfect companion
Our Talking Travel Companion separates into
multifunctional pieces. The first is a combination
of flashlight, weather-trend indicator and alarm
clock. Press a button, and a pleasant voice
announces the time and weather trend. The second
piece is a combination of movement sensor and
smoke detector. Its small size and light weight allow
it to run on one 9V and 4 AAA batteries. Guaranteed
for one year.

Color Flow Light Show 		Enjoy a color-changing night-light
With the Color Flow Light Show, you will experience
ever-changing beautiful colors using technology that
slowly mixes colors. Imagine yourself bathed in red,
rose pink, aqua, teal, blue and violet light. If a certain
mix strikes your fancy, press the Color Lock button to
enjoy is as long as you like. Plug into wall outlet (插座).
Guaranteed for one year.
IMAGE PRODUCT INFORMATION

Personal Warm
+ Cool System 		Wear your own climate-control system
Our Personal Warm + Cool System fits comfortably
around your neck and delivers hours of comfort.
Turn the dial to "warm" and within seconds your entire
body feels warmer. Or turn the dial to "cool" and enjoy
your own "personal air conditioner" on the hottest days.
Runs on 3C batteries (not included ). Guaranteed for
one year.

Wet Circuit 		Stay safe under water Our
Wet Circuit is water resistant. It also offers the touch
protection as well. In addition, it can prevent spark (火
花) and it can last up to 4 times longer than a regular
one. Do not keep it under water for more than 2 hours.
Guaranteed for one year.
1. According to the passage, the Talking Travel Companion can be used to _____.
A. mix colors
B. charge batteries
C. tell the time
D. cool the body
2. Where is the passage probably taken from?
A. A travel guide.
B. A product catalogue.
C. A research paper.
D. A sports magazine.
3. All the listed products _____.
A. are button operated
B. produce light
C. run on batteries
D. offer one year free repairs
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单项选择题

应用BUN：Ser（mg／d1）比值鉴别肾前性氮质血症和急性肾小管坏死（）.

A.>20：1支持肾前性氮质血症

B.>20：1支持急性肾小管坏死

C.<20：1支持肾前性氮质血症

D.>10：1支持肾前性氮质血症

E.>1支持肾前性氮质血症
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