介绍了丙二酰氧基硼氢化钾的制备及其原位与烯烃的选择性硼氢化.The preparation of potassium malonyloxyborohydride in situ and its selective hydroboration alkene are described.叙述了丙二酰氧基硼氢化钠的制备及其原位与烯烃的选择性硼氢化反应.The preparation of sodium malonyloxyborohydrid...
在出发的三天之前打电话预订即可。Just phone in your order three or more days prior to departure.我们可以安排提供从芝加哥奥黑尔机场出发的租车服务。We can organise car rental from Chicago O'Hare Airport.从大陆出发的汽车轮渡常常在2月前就被预订一空。The car ferries from the mainland...
The supernal ideology will not coexistence with the everyman.超凡的思想是不会与凡夫俗子共存的.Douglas plays a frustrated American everyman who suddenly loses control under the pressure of daily life.道格拉斯扮演一个失意的普通美国人，他在日常生活压力下突然失控。Mediev...