单词：POLYPLOCIDAE
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青霉素类 青霉素(G) Penicillin(G) Benzylpenicillin，苄青霉素，盘尼西林 青霉素V Penicillin V Phenoxymethylpenicillin 苯氧甲基青霉素 苄星青霉素 Benzathine Penicillin 长效西
医务英语
A witness to the terrorist mall attacking Kenya say several attackers were women and one of them white. Kenya officials are so sure that one of them has been the so called white widow or wide has been issued for. Let's get started. Tonight the Kenya
美联社新闻一分钟2013(十月)
As a polyp grows, it puts up a wall of limestone around itself. And then it multiplies. Each polyp can produce thousands of offspring, which all work together to build a living fortress-- a coral reef. After just a few years, a single piece of coral
自然百科2011年
First division in the polyp group, the class Spongiaria has been created by scientists precisely for this unusual exhibit whose usefulness is beyond dispute. 海绵纲是水熄类的第一纲，这一纲就是由这种非常有用处的新奇产物组成
《海底两万里》中英双语有声读物
Heart Patients More Likely to Take Medication When in Single Pill 心脏病人更倾向于服用单一药物 WASHINGTON Many patients who have heart disease or who have suffered a stroke dont take their medications as regularly as prescribed. One stu
VOA常速英语2013年(九月)
By Jessica Berman Washington 20 September 2007 Scientists say they have evidence that a ferocious dinosaur made famous by the movie Jurassic Park definitely had feathers. Experts say the dinosaur, called Velociraptor, had a wing structure just like m
2007年VOA标准英语（九月）