在下列各组中都属于生物的一组是 [ ]
A. 含羞草、蘑菇、生长浮萍的水
B. 珊瑚的外骨骼、病毒、小草
C. 猫、蘑菇、细菌
D. 蝴蝶、小鸟、慢慢长大的钟乳石
答案:C
Every year large quantities of water in the rivers _______ polluted and _______ money is spent solving this problem. [ ]
A. is; a huge amount of
B. are; a huge amount of
C. are; huge amounts of
D. is; huge amounts of
在抗美援朝战场上,涌现出无数可歌可泣的英雄人物,下列人物属于抗美援朝时期英雄的是( )
①董存瑞 ②黄继光
③邱少云 ④刘胡兰
A.①②③④
B.②③
C.①④
D.①②③