下列不属于提高和改善沟通能力的沟通方式是（）。
A.宣传代言人
B.双向的非对称的方式
C.小众信息方式
D.双向对称的方式
参考答案：C
计算：（5a+1）2=______．
The older she grows, the traditional food in her own country. [ ]
A.the more she becomes interested
B.the more interested she becomes
C.the more interested she becomes in
D.the interested she becomes more in
