下列各个选项中加点字的词类活用特点完全一致的一项是( )
A.上食埃土,下饮黄泉顺流而东也
B.舞幽壑之潜蛟,泣孤舟之嫠妇而耻学于师
C.箕踞而遨则群聚而笑之
D.始指异之穷回溪
答案:C
已知a+b=3,a3+b3=9,则ab等于( )
A.1
B.2
C.3
D.4
—Can you see _____ birds in the tree?
—Yes, I can see _____.[ ]
A. any; any
B. any; some
C. a; any
D. many; any