选择题：Find ways to praise your children often,_________

题目内容：

Find ways to praise your children often,_________ you’ll find they will open their hearts to you.

A.till
B.or
C.and
D.but

参考答案：

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在BCG矩阵中，企业对瘦狗类经营单位实行的战略是（）。A、市场开发 B、维持战略 C、收缩和放弃战略 D、收获战略

账务处理系统中，执行（）功能后不能再输入当月凭证。(本题1.5分) A、记账 B、审核 C、结账 D、打印

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