阅读理解。 GUATEMALA CITY(Reuters)-A fish th

题型:阅读理解

问题:

阅读理解。

     GUATEMALA CITY(Reuters)-A fish that lives in mangrove swamps (红树沼泽) across the Americas

can live out of water for months at a time, similar to how animals adapted (适应) to land millions of years

ago, a new study shows.

     The Mangrove Rivulus, a type of small killifish, lives in small pools of water in a certain type of empty

nut or even old beer cans in the mangrove swamps of Belize, the United States and Brazil. When their living

place dries up, they live on the land in logs (圆木), said Scott Taylor, a researcher at the Brevard Endangered

Lands Program in Florida.

     The fish, whose scientific name is Rivulus marmoratus, can grow as large as three inches. They group

together in logs and breathe air through their skin until they can find water again.

     The new scientific discovery came after a trip to Belize.

     "We kicked over a log and the fish just came crowding out," Taylor told Reuters in neighboring Guatemala

by telephone. He said he will make his study on the fish known to the public in an American magazine early

next year.

     In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.

     Some other fish can live out of water for a short period of time. The walking catfish found in Southeast

Asia can stay on land for hours at a time, while lungfish found in Australia, Africa and South America can

live out of water, but only in an inactive state. But no other known fish can be out of water as long as the

Mangrove Rivulus and remain active, according to Patricia Wright, a biologist at Canada's University of

Guelph.

     Further studies of the fish may tell how animals changed over time.

     "These animals live in conditions similar to those that existed millions of years ago, when animals began

making the transition (过渡) form water onto land," Wright said.

1. The Mangrove Rivulus is a type of fish that ______.

A. likes eating nuts

B. prefers living in dry places

C. is the longest living fish on earth

D. can stay alive for two months out of water

2. Who will write up a report on mangrove Rivulus?

A. Patricia Wright.

B. Researchers in Guatemala.

C. Scientists from Belize.

D. Scott Taylor.

3. According to the text, lungfish can ______.

A. breathe through its skin

B. move freely on dry land

C. remain alive out of water

D. be as active on land as in water

4. What can we say about the discovery of Mangrove Rivulus?

A. It was made quite by accident.

B. It was based on a lab test of sea life.

C. It was supported by an American magazine.

D. It was helped by Patricia Wright.

考点:新闻报道类阅读
题型:阅读理解

鲜蛋应在______条件下储藏。

A.1~5℃

B.4~10℃

C.相对湿度85%~90%

D.相对湿度80%~90%

E.10~15℃

题型:阅读理解

有关蛛网膜下腔阻滞麻醉(腰麻)的描述,下列哪项是不恰当的

A.适用于2~3小时以内下腹部、下肢及会阴部等手术麻醉

B.穿刺部位一般选择L3~4或L4~5间隙

C.麻醉平面升高时血压下降较为常见

D.头痛是麻醉后较常见并发症

题型:阅读理解

There ______ a computer and some books on the desk. [ ]

A. is            

B. are            

C. be              

D. has

题型:阅读理解

最佳资本结构是指企业在一定时期最适宜其有关条件下 ( )

A.企业价值最大化的资本结构

B.企业目标资本结构

C.加权平均资本成本最低的目标资本结构

D.加权平均资本成本最低、企业价值最大的资本结构

题型:阅读理解

( )是价格形成的基本因素。

A.生产成本

B.市场供求

C.国家政策

D.生产条件

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