题干

甲班有35人,乙班有26人.现在需要从甲、乙两班各抽调一些同学去养老院参加敬老活动.如果从甲班抽调的人数比乙班多3人,那么甲班剩余的人数恰好是乙班剩余人数的2倍.问从乙班抽调了多少人参加了这次敬老活动?
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答案(点此获取答案解析)

解:设从乙班抽调了x人参加了敬老活动.

根据题意列方程,得

35﹣(x﹣3)=2(26﹣x).

解方程得:x=20.

答:从乙班抽调了20人参加了这次敬老活动

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    It's considered to be the most important meal of the day, but do you really take the time to put together a healthy meal first thing in the morning? If you're watching your weight, skipping breakfast will damage your efforts to lose weight____ It can also speed up your metabolism (新陈代谢).

    Making breakfast a habit may not be easy. Use these tips to make eating breakfast a habit:

    Get up earlier____ Get up ten to fifteen minutes before your regular wake-up time that you have enough time to prepare a tasty meal before your day begins. Try to make time to include breakfast in your daily schedule and stick to it so it becomes a habit.

    Plan your meals ahead of time____ Put together three or four different breakfast recipes that you know you will actually eat. A little planning can help you make eating breakfast a habit as soon as possible.

    Be selective. Buy a handful of ingredients to put together a healthy breakfast yourself, instead of relying on prepared breakfast food and snacks____ If you don't like “traditional” breakfast foods, eat what you like so that you're willing to stick with it to make eating breakfast a habit.

    ____ If you're working out in the morning, plan to eat breakfast within an hour after your workout so your body can recover. Again, planning ahead will make eating this meal a part of your daily routine.

A. The fresher the food, the better.

B. Breakfast is the first meal of the day.

C. Eat breakfast around your workout schedule.

D. Developing the habit of eating breakfast is important.

E. Eating breakfast can reduce your hunger later in the day.

F. Being rushed for time is a common excuse to skip breakfast.

G. Make sure you include a variety of healthy food choices for breakfast.