Both electrocardiograms and electroencephalograms are invaluable diagnostic tools in modern medicine.心电图和脑电图在现代医学中是非常珍贵的诊断工具.Methods Electrocardiograms of 100 patients with Af and wide QRS were analyzed.方法分析100例心房颤动伴宽QRS...
Remember that when both of you were in need, I was the one who loaned you money.记住，在你们两个都有困难的时候，是我借钱给你们的。Johann Fust , a local venture capitalist, loaned him 800 guilders in 1450.约翰·福斯特, 一位当地的资本家, 1450年贷给他800荷兰盾.Securiti...
Asymmetric 1, 3 - dipolar cycloaddition can be strongly catalyzed by chiral oxazaborolidines.手性唑硼烷酮能够催化不对称1, 3偶极加成反应并取得很好的效果.The dipolar layer is consisted of the latent electrostatic image and toner attracted on it.这偶极层...