题干
听短文，请根据所听到的内容，完成下面的表格。
Advice How to Keep healthy | |
Adviser | Daniel White — a(n) ____. |
Feeling | ____. |
Advice | ____ every day. |
Drink ____ to 8 glasses of water every day. | |
____ time with your friends and family. | |
答案(点此获取答案解析）
doctor,Happy,Exercise,6 /six,Spend
（t为参数），则直线l的斜率为（ 
）