银行网点可以重点针对优质个人客户或优质企业采取（）。
A.差别性市场策略
B.无差别策略
C.集中性市场策略
D.分层营销策略
参考答案：A
There were so many people on the platform waiting to ____ the train that we gave it up.
A．check
B．carry
C．find
D．board
幼儿园楼房楼梯旁的每根栏杆的距离不能大于（）。
A.10cm
B.12cm
C.14cm
D.16cm
