问题
单项选择题
某600MW超临界机组在540MW负荷时,转速差为6r/min,其调节系统迟缓率为()。
A.0.2%
B.0.3%
C.0.4%
D.0.1%
答案
参考答案:A
某600MW超临界机组在540MW负荷时,转速差为6r/min,其调节系统迟缓率为()。
A.0.2%
B.0.3%
C.0.4%
D.0.1%
参考答案:A
阅读理解。 | ||||
Have you got any wonderful plans for your coming summer vacation? Here are some wonderful films for you to kill time.
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1. This passage aims to ______. | ||||
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A. make comments on films for a cinema B. introduce films for a film corporation C. recommend several films for fun D. advertise several films for a website | ||||
2. If you bring your seven-year-old sister to the cinema, which of the following film should you avoid? | ||||
[ ] | ||||
A. Away We Go. B. Orphan. C. 2012. D. 500 Days of Summer. | ||||
3. Among all the characters mentioned in the passage, who directed films in Hollywood? | ||||
[ ] | ||||
A. Roland Emmerich. B. Tom and Summer. C. Burt and Verona. D. Esther. | ||||
4. Which of the following statements is TRUE according to the passage? | ||||
[ ] | ||||
A. Orphan is a comedy about Esther adopted by a kind family. B. 500 Days of Summer is a romance with a happy ending. C. Away We Go shows beautiful scenery on the young couple's journey. D. The ancient Mayan prediction is going to happen in 2012. |