Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化物而铍则不能。Common ceramic elements are barium titanate and lead zirconate - titanate.普通的陶瓷元件分别是钛酸钡和锆钛酸铅.There is reflux of barium into the terminal ileum.钡...
Hague was lagging badly in the polls.黑格在民意调查中被远远抛在后面。We are lagging far behind our European competitors in using new technology.我们在使用新技术方面远远落后于我们的欧洲对手.You will not be lagging behind if you work harder.你得努点儿力,才不会掉队....
a collection of local ware一批当地器皿This ware is suitable for decorative purpose but unsuitable for utility.这种器皿中看不中用.White conned his way into a job as a ware-houseman with Dutch airline, KLM.怀特骗到了一份工作，在荷兰皇家航空公司做仓库管理员。...
The Prime Minister has been briefed by her parliamentary aides.首相已听取了她议会助手的简要汇报。The carpet was a wedding present from the Prime Minister.这张地毯是首相送的结婚礼物。The Prime Minister has promised that Israel will play a constructive ...
The South Pole and the North Pole areantipodes.南极和北极是对跖地域.There have been at least thirteen previous attempts to reach the North Pole unaided.之前至少已经有过13次想独立到达北极的尝试。The arctic tundra is at the top of the world around the ...