2002的正约数有______个.
∵2002=2×7×11×13,
∴根据约数个数定理可得:
2002的正约数有(1+1)(1+1)(1+1)(1+1)=16.
故答案为:16.
— Are you________me of lying to the headmaster?
— I'm sure you did. [ ]
A. accusing
B. scolding
C. reminding
D. telling
因缺水紧急停炉时,可视情况给锅炉上水,并开启空气阀及安全阀快速降压。