单项选择题
单项选择题 According to the NASA reports, when did the change of the atmosphere happened
单项选择题 According to Joy Bauer, the first step of dieting is to
单项选择题 Which of the following is NOT a feature of successful loserA. They eat healthy breakfast every single day.B. They weigh themselves at least once a week.C. They watch TV less than an hour a day. D. They excise about an hour a day.