任务型阅读
When it comes to the benefit of volunteering, a lot of people think it's all about the warm feeling after helping someone. ____As is known, charity work requires a wide variety of people to do a wide variety of things for everything to work. It means that there are some surprising benefits for volunteers. For example, volunteering:
Teaches you new skills.
From helping making websites to teaching immigrant kids your native language, or to arranging events for charity, volunteering can really be almost anything. It means that when you get involved charity work, a lot of the time you will face challenges. ____
Can teach you what truly matters.
It's a great way to find new perspectives（角度）on life. When you've been at it for a while, you just might find yourself re-evaluating your advantages.____ One of my friends went from wanting U be a lawyer to discovering a true passion for teaching
____
Maybe it is not surprising, but what might surprise you is how genuine these friends are. Some oi my long-term friends are people I've met through volunteering. I'm not that kind of guy that makes friends purely for connections, but sometimes it's very convenient to have a broad network.
Summed up in one line: volunteering helps you grow. ____ You meet a wide variety of people who don't have a lot in common with. You learn to get along with people involved in many different walks in life. You learn to know what you are to do. So if you've ever considered volunteering, what are you waiting for?
A. You might even decide on a completely new path to take in life.
B. Helps you make new friends
C. As it turns out, that's far from the only benefit.
D. Volunteering helps you look outside yourself and your problems.
E. Through overcoming the challenges, you learn completely new skills.
F. Not only as a person, but it helps you develop your skill as well.
G. Can help improve social skills
a、b不共线，e1 =ka－b，e2 =2a+b，若e1// e2，则实数k的值
为 ( )