英语听力：探索发现

探索与发现2012年

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英语听力：探索发现科学新发现：我们的大气层-24

This is a genuine iron meteorite, this is believed to have once been part of the core of a long dead planet or asteroid, and this was found right here in this strewn field, this remarkable little shapes, indentations on the surface are called thumbpr

发表于:2018-12-03 / 阅读(197) / 评论(0)

探索与发现2014年

英语听力：探索发现 2012-12-30 冰河新新州 Ice Age Oasis—8

But how did one man and a spear produce the huge force behind this blow? The answer lies with small bits of ivory like this. They were once part of an atlatl, or spear thrower. An atlatl acts as a sort of catapult, magnifying the strength of a hunter

发表于:2018-12-03 / 阅读(189) / 评论(0)

探索与发现2012年

英语听力：探索发现 2012-12-26 冰河新新州 Ice Age Oasis—6

These holes are the unmistakable hallmark of a violent death. Their shape suggest they were made by the teeth of a big cat, but which one? Today theres only one large cat in the region, the Florida panther. Though similar to the cougar at the western

发表于:2018-12-03 / 阅读(191) / 评论(0)

探索与发现2012年

英语听力：探索发现 2012-12-28 冰河新新州 Ice Age Oasis—7

But most significant of all, the jaguar has a tell-tale trademark. Instead of going for the neck or snout like most cats do, it kills with a crushing bite through the skull into the brain. This makes the jaguar prime suspect in this case. Even the gl

发表于:2018-12-03 / 阅读(174) / 评论(0)

探索与发现2012年

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学英语单词

accessory copulatory organ

Ahead one starboard!

alternate position view

anomalous poole-frenkel emission

Apertura interna aqueductus vestibuli

automatic ram control valve (arcv)

basic building block

Bose-Einstein nuclei

buy foreign securities

center of gravity map

citizens'advice bureau

committee-rooms

demand for explanation

dept. cost center

disassembly and assembly block

Divina Commedia

effective center

explosive formed projectile

floating camel fender

found in digestive juice

fraudulent scheme

friction clutch of double-disk dry type

full thickness graft

gasterosteus aculeatuss

genital personality

genitoanorectal elephantiasis

Gypsophila cephalotes

helcogramma chica

inocular antennae

leptodius sanguineus

metallostatic pressure

Metro-Goldwyn-Mayer

model of linear storage hierarchy

moist mineral-matter-free basis

off line computation

ratcher-type device

revolving digester

scleral contact lens

shifting linkage

splash proof machine

stick in someone's crop

strengthening piece

superconducting shields

thick blood film method

three-ring circuses

Trapella sinensis