喝牛奶后引起腹胀、腹泻，是因为人体内缺乏乳糖酶所致。
参考答案：对
小练笔。
Hello! My name is Alice. Today I go shopping with my mother. There are many people and cars on the
street. I want to buy an ice cream. I walk across the street when the light is red. I want to run quickly back
to my mother, but I can't. At last, the police helps me.
读了上面的短文，你觉得Alice做得对吗？如果不对，她应该怎么做？给她写下2-3句话吧！
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A公司3月份发生下列支出：预付本年度全年保险费4800元；支付上年第四季度借款利息3000元(已预提)；支付本月办公费800元。计入本月的费用为( )元。
A．1200B．6200C．3200D．3800
