单词:biventer cervicis
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BOB DOUGHTY: This is SCIENCE IN THE NEWS, a program in VOA Special English. Im Bob Doughty. SHIRLEY GRIFFITH: And Im Shirley Griffith. Today we tell about the development of what scientists are calling a synthetic cell a cell produced by people inste
South Africas national government protocol requires state health facilities to provide antiretroviral medication to ill, HIV-infected people. However, independent health groups continue to receive reports of HIV-infected people dying because certain
Former world No.1 Ivanovic upset at China Open BEIJING, Oct. 3 (Xinhua) -- Serb Ana Ivanovic's 4th consecutive run to the quarterfinals at the China Open was snipped here on Wednesday as the former world No.1 lost to Romina Oprandi of Switzerland in
NEW YORK, Sept. 5 (Xinhua) -- US powerful Serena Williams served nine aces to dispatch former world No. 1 Ana Ivanovic in straight sets among gusty wind, advancing into the quarterfinal of US Open on Monday. Williams, a 13-time major champion and thr
BEIJING, Oct. 6 (Xinhua) -- Former world number one Ana Ivanovic of Serbia will return to Bali in November to defend her Commonwealth Bank Tournament of Champions title after receiving the first wild card for the event on Thursday. Last year Ivanovic
US scientists have stripped life back to its bare essentials creating a synthetic microbe with the absolute minimum genetic information needed to grow and reproduce. 美国科学家将生命的多余部分剔除,只留下最基本的要素,由此创