企业选择目标市场最简单的策略模式是（）。
A.市场集中化
B.选择专业化
C.产品专业化
D.市场全面化
参考答案：A
赋予生命的实际内容并发展生命靠的是[ ]
A、父母的给予
B、朋友的帮助
C、自己的劳动创造
D、金钱
You should thank him for his ____. Without it, he couldn't make her laugh. [ ]
A. an advice
B. some advice
C. advices
D. many advices
