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(120) / 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(137) / 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(126) / 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(119) / 评论(0)

探索与发现2012年

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学英语单词

AC counting coded track circuit

access interface

accumulator spring

axial varying pitch

benzene monosulfonic acid

deep digger body

dorsal abomasal lymph gland

double-crystal spectrograph

Dovyalis hebecarpa

elizabeth arden

exon trapping method

fuel and stores

green joe-pye weed

histamine headaches

homopolar valency

idozees erectus

in the ballpark

inclosed deposit

international Law of the Sea

knight-companion

lactate condensation compound

local oxidation

make a calculation of

model framework chart

multiterminal bipolar device

musculo-cutaneous artery

non-circular statistic

non-skid deck paint

nonradial oscillation

order close-out miscellaneous purge

product buy back

rotor pocket recess

short-range aids

soluble cation group

Spatium retropubicum

split-cycle control

straight carbon roll

traditional Chinese physiology

transmission of skipping to other channel

travelling (performance traverse)

treasure troves

weld thermal cycle