题目

It’s been said that life turns on small things. Sometimes it’s hard to see how small choices can change your life. But when put together over tiime, the little things can make the biggest difference. The theme of Success for Teens is “little things matter”. The book helps teens identify small, positive choices they can make in their lives to help them reach their goals. Lots of teens don’t realize how the little choices in their lives can have lasting effects. Often they focus on the bigger events, such as a major exam, a big game or competition, or choosing a college. The li下列计算：①，②，③，④．其中正确的个数是 [　　] A．0B．1C．2D．3