A:whichever
B:however
C:whatever
D:whoever
能源是人类社会活动的物质基础,其中常规能源有:____;____;天然气.清洁能源有____;____;风能等.
若(x+4)(x-2)=x2+px+q,则p、q的值是( )
I will take a holiday with my family _______ I finish all the exams.