C Can you imagine a catfish bigger than

题型:阅读理解

问题:

C

Can you imagine a catfish bigger than a boy? There are more than 1,000 kinds of catfish;28 species are found in the United States' lakes and rivers. This huge family has some mighty strange members. Let's meet a few.

Walking catfish.Nature's feisty little catfish,found in southern Florida,has an extra lung for breathing on dry land. When its swimming hole dries up,the walking catfish waddles on stiff forward fins in search of another lake or stream.If an enemy attacks,the fish flares(展开)its top and front fins and leaps at the attacker to scare it off.

Armored catfish.This catfish has heavy,bony plates protecting its body. The shell makes the fish difficult to bone. To cook it,throw the fish whole into a fire. When it is done,break it open for eating.Some armored catfish are found in Florida,but the 100-pounders live in South America.

Rounding out the family of strange catfish are talking catfish,which make growing sound when you pull them from the water;climbing catfish,which move quickly up shore brush in search of food;electric catfish,which can deliver a mild shock;and blind catfish,which settle in the inky blackness of underwater caves.Blind catfish find food through taste buds in their eight whiskers(须).

Most catfish have four whiskers on the upper jaw and four on the lower jaw. Sensory holes on these whiskers help the fish smell and taste food even in the muddiest of water.The United States does not have catfish anywhere near the size of those in South America.But in some large U.S,rivers,blue and flathead catties do top 100 pounds.

Most of the catfish you are likely to catch will be much smaller,about frying pan size.When you catch one,remember that the top fins and the forward fins have poison glands(腺)at their bases. They can give you painful wounds (…)

63.The purpose of the passage is to___________.

A.encourage readers to go fishing for catfish

B.inform readers of the world's largest catfish

C.describe the unusual characteristics of catfish

D.explain different ways to catch a variety of catfish

64.The author talks about the way of cooking an armored catfish to show that

A.it has heavy and bony plates        B.it's hard to cook and eat

C.it has too many bones      D.it's poisonous inside

65.Which is NOT mentioned about catfish in the passage?

A.Its eating habits.                                    B.Its living conditions. 

C.Its whiskers.                                 D.Its size

66.What may be continued in the last paragraph?

A.The author's love for catfish.     B.Where else to catch a catfish.

C.The origin of the name “catfish”    D.The safest way to handle catfish

考点:科教类阅读
题型:阅读理解

下面关于在软件开发过程中的问题的叙述,说法正确的是( )。

A.程序流程图是逐步求精的好工具

B.NS图不可能任意转移控制,符合结构化原则

C.判定表是一种通用的设计工具

D.程序流程图和NS图都不易表示模块的层次结构

题型:阅读理解

泪腺多形腺瘤好发于()

A.少年儿童

B.中年男性

C.中年女性

D.老年女性

E.老年男性

题型:阅读理解

男性,20岁,咳嗽,低热2个月,咯血1周,体检右上肺可闻湿啰音,X线胸片示右上肺后段炎性阴影,其中可见透亮区,血沉30mm/h,最可能的诊断是().

A.支气管扩张伴感染

B.肺脓肿

C.癌性空洞

D.空洞性肺结核

E.肺囊肿伴感染

题型:阅读理解

如果某台硬件防火墙有如下配置。
FW (config)#nameif ethemet0 P1 security100
FW (config)#nameif ethernet1 P2 security0
FW (config)#nameif ethemet2 P3 security50
那么该防火墙最可能的端口连接方案是______。

A.端口P1作为外网接口,P2连接DMZ,P3作为内网接口
B.端口P1作为内网接口,P2连接DMZ,P3作为外网接口
C.端口P1作为外网接口,P2作为内网接口,P3连接DMZ
D.端口P1作为内网接口,P2作为外网接口,P3连接DMZ

题型:阅读理解

带轮的中间平面或两轮对应轮槽须在同一平面内,其倾斜角应不超过()。

A、1度

B、5度

C、3度

D、10度

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