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

automatic information storage & retrieval system

automobile racing

bulk grain handling appliance

Camp David Accord

chaenomeles cardinalis carr.

chip-breaker grinding machine

convergence and divergence

crisis management

dental disfigurement

depreciation reserve furniture and fixtures

dielectric reflector

dust binding composition for sweeping

dysplasia of pectoralis minor

earthquake hydrodynamic force

fling something in someone's teeth

gardner flowmeter

germinating cabinet

hemithyroidectomy

high temperature gas filter

hybrid identity

landsmanshaften

low hydrogen-type electrode

Mary Jane shoes, Mary Janes

memory partition name list

multi-purpose tramp

nectriella cucumeris hanazawa

non retroactive

nonuniformity coefficient

not yet operated

operation and maintenance department

opuntia microdasys

pentazocine hydrochloride

planographic platemaking

portrait painter

potassium polymetaphosphate

prsudoapillitium

pull-up position

sending machine

snowshoe rabbit

someone's wheels go round

system symbolic address name

telemetering force balance type converter

test basis examinations

tinmen's bick iron

uncrystallziable

undersignated milk

uppermiddle-class

Urokinase-Ebewe