题干

下列图象中,能正确反映其对应变化关系的是(   )

A:服用胃舒平主要成分是Al(OH)3治疗胃酸过多,胃液pH的变化

B:向一定质量的稀盐酸和氯化铜的混合溶液中加入氢氧化钠溶液

C:将等质量的镁和铁分别投入到盛有足量同种稀硫酸的两个容器中

D:浓盐酸敞口放置

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C

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    Teachers love to put students into teams.____ Why? Because they know the responsible team members will come through for a good grade.

If you are teamed up with a student who is lazy, the worst thing you can do is let it get you down.____ and it might create a positive change in your partner!

    Try these tips for working with a slacker(懒虫).

    Be excited and provide a good example. Your slacker may be a good person who has developed bad work habits. You may be able to teach your partner some valuable skills for a successful future.

    Think rewards!____ For instance, you could promise to make cupcakes for the next work meeting and encourage your partner to bring a good snack.

    Make some time to sit with your partner and establish a set of work rules and deadlines. Don't quarrel, though. Make it clear that you would like to establish rules to keep you both on track.____ Keep a record of your rules, your initial meetings, and your work. When it becomes obvious in the records that you're doing all the work, talk with the slacker.____

A. Don't let the anger and pain defeat you.

B. Come up with a great reward for meeting some goal.

C. Instead, take some steps to encourage your partner to work.

D. Unavoidably one or more members will try to do nothing.

E. Start out by giving your partner a clear task with a deadline.

F. Show him/her the evidence and suggest he or she pick up the pace.

G. Think about the future and the fact that you are going to be rewarded.