题目

Sports may be fun，but you need to play them safely． Here are some tips to help you stay safe while you're playing sports in winter． Get your body ready! Before you do exercise，be sure to warm up for at least five minutes．During warming up you should stretch（伸展）all parts of your body． Wear the right clothes! Be sure to wear the right clothes for sports． If you play winter sports，make sure that you dress warmly．Also make sure to use suntan oil（防晒油）．It may be cold，but the sun is still bright! If you don't put on suntan oil，your skin maybe hurt． If you g若，则下列式子中错误的是（ ）A． B． C． D．