下列判断不正确的是( )
A:若a>b,则﹣4a<﹣4b
B:若2a>3a,则a<0
C:若a>b,则ac2>bc2
D:若ac2>bc2,则a>b
肝脏是人体最大的消化腺,分泌的胆汁能够促进下列哪种物质的消化( )
George is going to talk about the geography of his country,but I’d rather he________more on its culture.
这个图案是由____基本图形构成的。