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(204) / 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(194) / 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(196) / 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(177) / 评论(0)

探索与发现2012年

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学英语单词

a walled garden

adjustable wrench

admission of debt

aix-la-chapelles

all wheel drive station wagon

amyiene oxide ring

antidiuretic hormone

congestion traffic unit meter

control valve operating lever

corneae staphyloma

diazotizing colours

distribution ratio of silica

eia standard rs-232 b or c

false alumroots

fan-marker beacon

fuel-feed system

fusarium culmorum

global extrapolation

homocentric illumination

inductive tensiometer

insulator laying

isoplanar process

Kholm-Zhirkovskiy Rayon

large sample property of estimator

lead dihydroarsenate

length of river

lobus posterior hypophysis

mercerizing agent

Meyer atomic volume curve

microfossil analysis

mistura magnesii sulphatis alba

noisy substring

nuclear locally convex

operative constraint

order instruction

permanent delay

piezo semiconductor transducer

Piper pedicellatum

post-steroid panniculitis

seasonal estuary

signal point indicator lamp

stratum spinosum epidermidis

stripper column

time dependence

to-and-fro funiculars