[网络] 准石燕属；腕足类化石之一种
(spiriferina 的复数)

SCIENCE IN THE NEWS - Aspirin

SCIENCE IN THE NEWS - January 29, 2002: Aspirin By Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with SCIENCE IN THE NEWS, a VOA Special English program about recen

发表于:2018-12-07 / 阅读(278) / 评论(0)

科技之光

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Lois has a headache. The headache started one hour ago. She doesnt know why she has a headache. She never gets headaches. She never gets sick. Lois is a healthy woman. Where did her headache come from? Was it something she ate? Was it something she d

发表于:2019-01-02 / 阅读(309) / 评论(0)

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By Noel King Goma, DRC 22 November 2007 Food prices are skyrocketing in eastern Congo's volatile North Kivu province as Laurent Nkunda's rebels and the Congolese army engage in what aid workers and the United Nations are calling a game of stopping an

发表于:2019-01-09 / 阅读(320) / 评论(0)

VOA常速英语2007年（十一月）

HEALTH REPORT - Aspirin After Bypass Surgery

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儿童英语读物《神奇树屋》第十一册 Lions at Lunchtime 06 Spick and Span

Be still, said Jack. Jack and Annie stood frozen as an elephant steppedout of the shadows. It waded into the pond anddipped its trunk into the water. Oh, wow, said Annie. Jack breathed a sigh of relief. An elephant wasn'tgoing to chase them and eat t

发表于:2019-02-17 / 阅读(241) / 评论(0)

汪培珽儿童英文分级书单《神奇树屋》

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学英语单词

acetylgl acid

acetylpiperazine

allighan

alopecia folliculitis

amino acid additive

ARGONAUTOIDEA

automatic sock linking machine