【单选题】According to the writer, you should not
B.
get too close to your boss.
C.
depend upon your boss too much.
D.
get involved in your boss' mishaps to avoid getting your marching orders.
【简答题】有一黄色结晶C,HCl-Mg反应显红色,Molish反应(+),FeCl3反应(+),ZrOCl2反应呈黄色,但加入枸橼酸后黄色褪去。IR νmax(KBr)cm-1:3520,3470,1660,1600,1510,1270,1100-1000,840。1H-NMR(DMSO-d6,TMS)δ:7.20(1H,d,J=2.5Hz),6.92(1H,dd,J=8.0,2.5Hz),6.70(1H,...
【单选题】阳泉市郊区教科局提出开展“三有课堂”,某中学在一节体现“三有课堂”公开展示课上,李老师展示一幅图,条件是: 为直线 上一点, 为直角, 平分 , 平分 , 平分 ,各个小组经过讨论后得到以下结论:1 与 互余 2 与 互补 3 与 互补 4 ,聪明的你认为哪些组的结论是正确的,正确的有 个.
【简答题】某黄色结晶I,盐酸镁粉反应(+),Molish反应(+) ,FeCl3反应(+) ,ZrOCl2反应呈黄色,但加入枸橼酸后黄色褪去。 I的UV nm如下: MeOH 252 267 (sh) 346 NaOMe 261 399 AlCl3 272 426 AlCl3/HCl 260 274 357 385 NaOA...
【单选题】Passage 14 Once there was a pauper who never played up to(奉承) wealthy people. A rich person once asked him “I’m rich. Why don’t you flatter me?” “The money you have is yours,”the pauper replied.“Why s...
【单选题】The flatter a hair appears under a microscope, ______ wavier it is.
【简答题】All that flatter you too much are not faithful friends.
【简答题】有一黄色结晶 (I ), HCl-Mg 反应 显红色, Molisch 反应 ( + ), FeCl 3 反应 ( + ), ZrOCl 2 反应 呈黄色,但加入枸橼酸后黄色褪去。 IR ν max (KBr) cm -1 : 3520, 3470, 1660, 1600, 1510, 1270, 1100~1000, 840 。 I 的 UV λ nm 如下 : CH 3 OH ...
【简答题】Once there was a pauper who never played up to(奉承 ) wealthy people. A rich person once asked him “ I ’m rich. Why don’t you flatter me?” “ The money you have is yours, ” the pauper replied. “ Why shou...