水杨酸糠酯

Flying:Dream and Reality

(Movie Toy Story: To infinity and beyond!) Oh, to be free as a bird. It’s been the 1) stuff of fantasy, and of reality. Sort of. 2) A self-contained flying man. This jet pack from the 1960s had bare

发表于:2018-11-28 / 阅读(113) / 评论(0)

疯狂英语2002年

6_te4

Listen carefully to the conversations and short passages [00:07.99]and choose the best answer to each of the questions. [00:13.56]1.A)From eight o'clock in the morning until noon. [00:27.19](B)From noon until six o'clock in the evening. [00:37.22]C)F

发表于:2018-12-01 / 阅读(145) / 评论(0)

大学六级听力模拟题

美国国家公共电台 NPR Videotapes Are Becoming Unwatchable As Archivists Work To Save Them

MICHEL MARTIN, HOST: Let's talk now about those memories from the '80s and the '90s on home videotapes - the kids playing in the backyard, the school concert, the birthday party, the wedding. If they're just sitting in a box somewhere, they may soon

发表于:2018-12-18 / 阅读(32) / 评论(0)

2017年NPR美国国家公共电台6月

VOA标准英语2010年-For U.S. Troops, New Armored Vehicle i

Explosive Devices have accounted for around 800 of the roughly 1,100 U.S. combat deaths in Afghanistan. To counter these increasingly-lethal bombs, the U.S. military is spending billions of dollars on blast-resistant vehicles specially tailored for A

发表于:2019-01-13 / 阅读(46) / 评论(0)

VOA标准英语2010年(八)月

VOA标准英语2010年-Could More Realistic Flight Training P

Authorities think so, and they've designed simulators that shake, rattle, and roll Ted Landphair | Washington DC 25 March 2010 U.S. space agency simulators help prepare airplane pilots for crisis situations. But critics say they don't adequately repl

发表于:2019-01-13 / 阅读(34) / 评论(0)

VOA标准英语2010年(三月)

英语听力：自然百科徒步南非：喀拉哈里大沙漠—2

One river has single-handedly created whats known as the Green Kalahari. But my starting point is anything but green. This is true frontier country. That way is Namibia. And there, well, desert emptiness. Luckily for me, the Orange River has sculpted

发表于:2019-01-22 / 阅读(31) / 评论(0)

自然百科2013年

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学英语单词

access method routine

American organ

angrez

antispacecraft defense system

authentication authorization accounting