复脉汤主治
A.川芎B.当归C.黄芪D.附子E.白芍
参考答案:A
He will be the only student ____ to Peking University in our class. [ ]
A. to admit
B. admitting
C. to be admitted
D. being admitted
已知卤代烃在一定条件下既可发生水解,又可发生消去反应,现由2-溴丙烷为主要原料,制取1,2-丙二醇时,需要经过的反应是 [ ]
A.加成-消去-取代
B.消去-加成-取代
C.取代-消去-加成
D.取代-加成-消去