问题
多项选择题
下列说法正确的是（）。
A、随着原料煤的煤化度提高，焦炭比热容下降。
B、焦炭比热容随焦炭挥发分的升高而下降。
C、焦炭中灰分提高，焦炭比热容升高。
D、焦炭中灰分提高，焦炭比热容降低。
答案
参考答案：A, D
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下列说法正确的是（）。
A、随着原料煤的煤化度提高，焦炭比热容下降。
B、焦炭比热容随焦炭挥发分的升高而下降。
C、焦炭中灰分提高，焦炭比热容升高。
D、焦炭中灰分提高，焦炭比热容降低。
参考答案：A, D
| 阅读理解。 | |||
| |||
| 1. What do people want to do at Nancy's Gym? | |||
| A. To enjoy swimming. B. To learn skating. C. To become thinner. | |||
| 2. Lucy likes skating. Which ad is she probably interested in? | |||
| A. Ice World. B. Water World. C. Nancy's Gym. | |||
| 3. You can call at _______ when you want to swim. | |||
| A. 45562233 B. 88682526 C. 21518296 | |||
| 4. You can go to swim in Water World at _______. | |||
| A. 8:00 am B. 9:30 am C. 10:00 pm | |||
| 5. Which costs the most for an adult? | |||
| A. Keeping fit at Nancy's Gym. B. Skating in Ice World. C. Swimming in Water World. |
Ice World Have fun skating here! $20 / hour for children