自动喷水灭火系统灭火后必须及时停止喷水的场所，应采用()
A.湿式系统
B.干式系统
C.预作用系统
D.重复启闭预作用系统
参考答案：D
阅读理解。
1. Xiang Jingyu was born in _____.
A. Xupu county
B. Huitong county
C. Chenxi county
2. Which of the following is True?
A. September 14 is Xiang Jingyu's Birthday.
B. Xiang Jingyu joined CPC in 1922.
C. She was killed at the age of thirty.
袋子里有3个黄球，5个白球，2个红球，摸到______的可能性大，摸到______的可能性小．
