企业的外部环境主要分为()
A、宏观环境
B、中观环境
C、微观环境
D、政策环境
E、人为环境
参考答案：A, B, C
What does the woman ask the man to do [A] She asks him to stand up. [B] She asks him to sit down. [C] She asks him to wait.
下列关于用电器作用的说法中，错误的是（ ）
A．电灯是将电能转化为光能的装置
B．电动机将电能转化为机械能
C．电吹风将电能转化为热能
D．电熨斗将电能转化为热能
