加强公安队伍建设要始终把( )放在首位。
A．从严治警 B．依法治警C．科技强警 D．政治建警
参考答案：D
在△ABC中，AC=AB，∠A=36 °，BD为角平分线，则△ABC和△BCD的关系为 _________
The girl had hardly rung the bell _____ the door was opened suddenly, and her friend rushed
out to greet her. [ ]
A. before
B. until
C. as
D. since
