题目内容：
What can you do to ensure that you will stay healthy?
参考答案：
答案解析：
单选题：What can you do to ensure that you will stay healthy?
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Several engineering professors have quit from teaching to pr
Several engineering professors have quit from teaching to protest against the cr
Power supply system was not damaged during the storm.
Power supply system was not damaged during the storm.
Weed killers must be chosen and applied with great care to a
Weed killers must be chosen and applied with great care to avoid damage to adjac
What did scientists think was true?A. Each person has a fixe
What did scientists think was true?A. Each person has a fixed weight range.
“头顶马聚源，脚踩内联升，身穿瑞蚨祥，腰缠四大恒”，这首老北京民谣形象地反映了老字号在市民心目中的地位。荣宝斋的字画、亨
“头顶马聚源，脚踩内联升，身穿瑞蚨祥，腰缠四大恒”，这首老北京民谣形象地反映了老字号在市民心目中的地位。荣宝斋的字画、亨得利的钟表、月盛斋的酱肉、张一元的茶叶、