英语听力：探索发现

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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(173) / 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(164) / 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(170) / 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(154) / 评论(0)

探索与发现2012年

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学英语单词

accounting postulates

ali-digital correlation

american flag sort

anomalous transfer

application rules for mrt

aural-type receiver

bevelling plane

Carpinus cordata

coarse range indicator

contaminated rocks

depositing-reworking current

differential of an analytic homomorphism

doughnut kidney

electric network reciprocity theorem

electrolyte solution

Euphorbia hispida

fall asleep at the switch

fructus xanthii

function signal

gear driven fan

genus coronillas

Grotrian diagram

hard meson technique

hard wired logic

heliotrope-carnation

human embryonic cells

Keplerian ellipse

meaning of words

mobile froth apparatus

multiplexer terminal unit

osmium telluride

Patterson-Cawood graticule

periodic bulimia

positive particle

progressive increase

pseudanthium theory

rachis genitalis

return on gross assets

scleroticochoroiditis

Scotch-type volcano

sodium para-aminobenzoate

specific issue market

Stader's splint

transmission header

TrisHydroxy-methylAminoMethane

tunnel diode circuit

uniform molecular weight

verification statistics