红外光谱中磺酰胺的S=O收缩振动峰位置在A．1300cm-1 B．3460cm-1

用方框中所给单词的适当形式填空。每词限用一次。

take after ;  snack ;  death ;   pass ;  America

小题1:He ______his father. They are both kind and clever.
小题2:I’m hungry and thirsty. Let’s go and buy some drinks and ______.
小题3:The ______of her little dog made him very sad.
小题4:Could you _____ the knife to me? We need them to make lanterns.
小题5:It is said that many ______teenagers will come to watch the 2014 Youth Olympic Games.