锅炉运行中汽压突然下降不会是因为（）_。（） A. 负荷突然增加 B. 锅炉水管破裂 C. 汽水共腾 D. 燃油中含水多
A、A
B、B
C、C
D、D

A．Learn blindly from the Western experience.
B．Force the students to work hard.
C．Finish the game even if you know you are losing.
D．Resist the temptation of fame and wealth.