单词：Bk
[医] 锫(97号元素)
n a radioactive transuranic element; discovered by bombarding americium with helium
【近义词】
- berkelium锫（放射性元素...
单词：Bk 相关文章
Burger King in Brazil sells burgers. It also takes pictures. It takes pictures of customers. It puts their pictures on the wrappers. It puts the wrappers on the burgers. The customer gets a burger with his picture on the wrapper. There's no extra cha
发表于:2019-01-30 / 阅读(130) / 评论(0)
原版英语小短文
原版英语小短文
By Andr de Nesnera Washington 11 October 2006 Tensions remain high between Russia and Georgia, after Georgia released last month four military officers arrested on spying charges - an accusation rejected by Moscow. The Russian government retaliated
发表于:2019-01-31 / 阅读(233) / 评论(0)
2006年VOA标准英语（十月）
2006年VOA标准英语（十月）