在Excel中，要将有数据且设置了格式的单元格恢复为普通空单元格，应先选定该单元，然

学校锅炉房存了m天用的煤，要使储存的煤比预定的时间多用n天，平均每天应当节约煤（    ）吨。

在教育目的问题上，法国教育家卢梭的主张体现了()。

A.社会本位论思想

B.个人本位论思想

C.社会效益论思想

D.教育无目的论思想

完成下列句子的同义表达

1. He was so fat that he couldn't get through the door.

    He was not __________ __________ __________ get through the door.

2. She ran very fast so that she could get to school on time.

    She ran very fast __________ __________ __________ get to school on time.

3. They used to be good friends, but they don't like each other any more.

    They used to be good friends, but they __________ __________ like each other.

4. My father no longer smokes.

    My father __________ smoke __________ __________.

5. He watched TV instead of playing football.

    He watched TV __________ __________ played football.

说明感应式电能表潜动现象产生的原因？

某混凝土工程，9月份计划工程量为5000m³，计划单价为400元/m³；而9月份实际完成工程量为4000m³，实际单价为410元/m³，则该工程9月份的进度偏差为（）万元。

A．-36

B．36

C．40

D．41