同义句转换。

1. He didn't take part in the sports meeting because he was ill.

    He didn't take part in the sports meeting ______ ______ his illness.

2. She said she was an artist, but actually she was a liar.

    She said she was an artist, but ______ ______ ______, she was a liar.

3. He commanded that we (should) set out at once.

    He commanded us ______ ______ ______ at once.

标准成本控制系统的内容包括（）

A、标准成本的执行

B、标准成本的制定

C、成本差异的账务处理

D、成本差异的计算分析

E、成本差异的分类