首页
登录
职称英语
[originaltext]W: Hi, Tom!M: Judy. I haven’t seen you in weeks. Where have you
[originaltext]W: Hi, Tom!M: Judy. I haven’t seen you in weeks. Where have you
游客
2023-09-10
40
管理
问题
W: Hi, Tom!
M: Judy. I haven’t seen you in weeks. Where have you been?
W: In Florida.
M: What vacationing! While the rest of us studying on the campus in February cold?
W: Not exactly. I spent most of my time under water.
M: I don’t understand.
W: I was on a special field trip. I went with my marine biology class.
M: So you went scuba diving. What were you looking for? Sunken treasure?
W: You might say so. The sea’s full of treasures. All kinds of strange fascinating organisms. Our class concentrated on studying plankton.
M: I found plankton were too small to be seen.
W: That’s a common misconception. The term plankton covers a wild variety of freely flowing plants and animals, from microscopic one cell organisms to larger ones, such as the common jellyfish.
M: Jellyfish may be large enough to be seen. But they are transparent, aren’t they?
W: Yes, most planktons have transparent tissues as protected camouflage, it makes them practically invisible to predators.
M: But not invisible to your biology class, I hope.
W: By concentrating, I was able to see the outlines of lots of different plankton plants and animals. In fact, our professor even took photographs of gastropods, which are small oceanic snails.
M: How would the snails show up in the photographs of their transparence?
W: We scoured it with harmless green dye since particles of the dyes stuck to their tissues, the snails appeared in green outline in the photographs.
M: That sounds like an interesting trip. But I think if I’d been in Florida in February, I’d much rather spend my time just swimming and lying in the sun.
选项
A、Planktons are too small to be seen.
B、Most planktons have transparent tissues.
C、Most planktons are practically invisible to predators.
D、Planktons are fascinating organisms.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3002690.html
相关试题推荐
[originaltext]Peopleenjoytakingtrips.Butwhatarcthereasonstheyleav
[originaltext]Peopleenjoytakingtrips.Butwhatarcthereasonstheyleav
[originaltext]Youmayrememberthatafewweeksago,wediscussedthequest
[originaltext]W:ProfessorThomsonhelpedmesomuchthatI’mthinkingofbuyin
[originaltext]W:ProfessorThomsonhelpedmesomuchthatI’mthinkingofbuyin
[originaltext]W:ProfessorThomsonhelpedmesomuchthatI’mthinkingofbuyin
[originaltext]W:ProfessorThomsonhelpedmesomuchthatI’mthinkingofbuyin
[originaltext]W:ProfessorThomsonhelpedmesomuchthatI’mthinkingofbuyin
[originaltext]I’llstillbeworking.Butthingswillbedifferent.Withany
[originaltext]Youshouldnotfearspidersbecauseoftheirpoison.Ofallt
随机试题
Takingondebtisoneofthemostimportanteconomicdecisionsapersoncan
要是你不想买风筝,你可以利用当地图书馆的书上可找得到的说明自己做一个。(available)Ifyoudon’twanttobuyakite,
Expressionismisanartisticstyleinwhichtheartistseekstodepictnoto
Asthepaceoflifecontinuestoincrease,wearefastlosingtheartofrel
再生障碍性贫血患者的网织红细胞A.增高 B.正常 C.增高或正常 D.正常
下面谱例中的音乐片段属于( )民歌。 A.浙江 B.江苏 C.安徽 D
以胆固醇为原料合成的激素不包括A.维生素DB.雄激素C.雌激素D.皮质醇E.肾上
关键点见证和出厂验收人员要求:1.应有一定的实际工作经验和专业知识。2.熟悉设备
将影响房地产价格因素分为一般因素、区域因素和个别因素时,下列选项中属于个别因素的
库存商品明细账一般采用()账簿。A、两栏式 B、三栏式 C、多栏式 D、数
最新回复
(
0
)