一般来说，幼儿园活动室里每个活动区的最佳容纳量为_________人。
参考答案：5-7
Not until he called the secretary three times ______ that the manager went to an important meeting. [ ]
A. did he tell
B. he told
C. was he told
D. he was told
某固定资产原价1000万元，使用寿命20年，预计净残值率为5%，则该固定资产的应计折旧额为______
A．50万元 B．100万元C．900万元 D．950万元
