题干

关于如图中四个图象的说法正确的是(   )

注:图中,E表示能量,p表示压强,t表示时间,V表示体积.

A:①表示化学反应H2(g)+Cl2(g)═2HCl(g)的能量变化,则该反应的反应热△H=+183 kJ/mol

B:②表示其他条件不变时,反应4A(g)+3B(g)⇌2C(g)+6D在不同压强下B的体积分数随时间的变化,则D一定是气体

C:③表示体积和pH均相同的HCl和CH3COOH两种溶液中,分别加入足量的锌,产生H2的体积随时间的变化,则a表示CH3COOH溶液

D:④表示10 mL 0.1 mol/L Na2CO3和NaHCO3两种溶液中,分别滴加0.1 mol/L盐酸,产生CO2的体积随盐酸体积的变化,则b表示Na2CO3溶液

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C

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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).

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    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.