07 牙病的预防与治疗 DATE=2-27-01 TITLE=SCIENCE IN THE NEWS #2113 - (1)Dental Health BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the

发表于:2018-12-07 / 阅读(61) / 评论(0) 分类 科技之光

Major Dental Work Sadie: Hi, Im Sadie. You must be Gordon. Gordon: Yes, I am. Its nice to meet you. Its a little strange to be set up, isnt it? Sadie: It was nice of Felina and Jaime to arrange this date. Gordon: It was. Jaime told me that youre a de

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A acceptable daily intake (ADI) 每人每日容许摄入量 acclimatization 气候适应 accumulate 蓄积 acetylandromedol 乙酰柽木醇毒 acceptable risk level 可接受的危险水平 acid-forming food 成酸性食品 Achromobacterium 无色菌属 Act for preventing the adulterati

发表于:2019-01-08 / 阅读(144) / 评论(0) 分类 英文语法词汇

By Michael Bowman Lima 09 April 2006 Electoral workers carry voting boxes to a poll station in Lima, Saturday, April 8, 2006 Peruvians head to the polls Sunday for presidential and legislative electio

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By Nico Colombant Dakar 15 January 2007 As residents of Liberia's war-torn capital Monrovia prepare to mark the first year of power for President Ellen Johnson-Sirleaf, the mood remains one of general praise and hope for Africa's first elected femal

发表于:2019-01-16 / 阅读(100) / 评论(0) 分类 2007年VOA标准英语(一月)

By Michael Bowman Washington 03 May 2006 When it comes to health care, Peru faces daunting challenges. The infant mortality rate is among the highest in Latin America, as is the mortality rate for wom

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