________that his wife might complain him，Tom did all housework before his wife came back.
A：Worrying
B：Having worried
C：Having been worried
D：Worried
“我创造、我快乐，我奉献、我快乐”是我们青少年应有的人生态度。（ ）
根据下列表格中对应的值，可以判断ax2+bx+c=0（a≠0，a、b、c为常数）的一个近似整数解x是（ ）
x
0
0.5
1
1.5
2
ax2+bx+c
﹣15
﹣8.75
﹣2
5.25
13
台湾的经济特点是（ ）
