工厂、企业、机关、学校、商业等照明用电不得与居民合用电能表，以便正确执行分类电价。
参考答案：对
If you are a distance learner,it is a good idea to set yourself a ________learning goal for each day or
each week. [ ]
A. delicate
B. visual
C. fair
D. specific
They began to think about what use could be ______ such materials.
A．made up
B．made from
C．made out
D．made of
