单词:primitive invertebrate
单词:primitive invertebrate 相关文章
The story of how we have systematically observed the heavens begins in the days before recorded time. For primitive man, the sun reigned supreme. Its recurring cycles of light and darkness formed the
Section A [00:02.90]1. M: We've got 34 on the list so far [00:08.75]but I'm sure it'll be up in the forties before we finish. [00:13.90]W: Well,in that case a sit-down dinner is out of the question. [00:19.15]It'll have to be a buffet. [00:22.80]Q: W
What little we know of them comes almost entirely from eavesdropping on their songs, but even these are a mystery. 我们对它们的一点了解,儿乎完全出自我们偷听到的它们的叫声,而连那个也还是个谜。 Blue whales will
Based on the sheer number of ants that invaded my home this summer, it seems hard to believe, but a new study finds that the numbers of invertebrates, which include any animal without a spine, has fallen by nearly half over the past thirty-five years
This is Scientific Americans 60 second Science, I am Christopher Intagliata, got a minute? You've probably seen clouds of insects swirling round a streetlamp at night. But something you may not have noticed is that streetlights attract bugs to the gr
[00:00.00]1.W:Do you have a calculator that you could lend me for a few days? [00:06.11]I just have no idea where mine is. [00:10.27]M:Well,yes,I have one.But actually my sister is using it now. [00:16.33]Q:What do we learn from this conversation? [0
An irreverent attitude from inverse to irreversible Smithers, dont you think its ironic that your irregular night-time activities are in inverse proportion to your reputation as an expert in the area of invertebrate research? the director of the aca
Here in the Timor Sea off northern Australia, take a look at a creature that seems to have the soul of a riverboat gambler. It moves through turf dominated by large hungry predators, and it fights these predators in a way that will astound you. This
1.The Bushmen are _______ hunters even though their weapons are primitive. A.favourite B.original C.sufficient D.expert 2.Before he left the White House, the president made a _______ speech. A. quarrel B.symbol C.automobile D.farewell 3.The local gov
Worms Get Ready to Fly in Space 蠕虫准备在太空中飞行 Humans are well-equipped for life on Earth. But in space, it is a different story. Low or zero gravity changes how the blood flows and causes motion sickness, muscle loss and tiredness. W
Minivan-sized Sponge Found off Hawaii Coast 夏威夷海岸发现巨型海绵动物 It might be hard to imagine, but scientists found a sponge the size of a minivan in deep waters near the Hawaiian Islands. 或许难以想象,科学家在夏威夷群
Humans Driving Massive Animal Extinction Earth is in the midst of its sixth mass extinction of animal species -- the first to be caused by humans -- in the past half-billion years, setting off a downward spiral in the environment and human health, wh
Time is running out for my friend. While we are sitting at lunch she casually mentions she and her husband are thinking of starting a family. We're taking a survey,she says, half-joking. Do you think I should have a baby? It will change your life, I
extinction n. 消失,消灭 extinguish vt.消灭,熄灭 falcon n.[动](猎鸟用的)猎鹰 fall victim to 成为...的牺牲品 far-sighted founders 具有远见的奠基人 fig n. 无花果 firew
如果嫌要发短信的内容长,不方便交流,费时费力,你建议对方打电话,可以说Let's go primitive。primitive的意思是原始的,go primitive就是采用原始的方式,显然电话比短信出现的早,相比之下就
Chimps do it. Dolphins do it. Even crows that want to catch fish do it. But an octopus? Yes, it seems the smartest member of the invertebrate world has learned how to use a tool. Octopuses have a reputation for being clever. They can figure out how t
HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: After days of negotiations for a prisoner exchange apparently broke down, ISIS today reportedly executed a Japanese journalist it had been holding hostage in Syria. Just last weekend, ISIS also beheaded
No Gym. No Problem Maybe its too expensive. Maybe youre too shy. Some people just plain do not like the gym. It can be boring, intimidating, and it can seem somewhat redundant. The good news is theres another way. Sports! Here well take a look at wha
托福听力背景知识:托福听力中有大量的专业及学术词汇,这些词汇大多依托于听力背景知识,如果考生能够事先了解一些托福听力的背景知识,对听懂听力对话及段子有很有帮助。 Darvinism