藤黄常采用的炮制方法是（）
A.水煮
B.甘草水煮
C.酒蒸
D.豆腐煮
E.姜汤煮
参考答案：D
Keep your child off drugs, ________ it will ________ many serious health and behavior problems.
A．or; point to
B．or; lead to
C．and; point to
D．and; lead to
Excel是一种表格式数据综合管理与分析系统。
A．正确
B．错误
