根据《住宅区和住宅建筑内光纤到户通信设施工程施工及验收规范》，沿建筑物外墙敷设的光缆
题型：单项选择题
问题：
根据《住宅区和住宅建筑内光纤到户通信设施工程施工及验收规范》，沿建筑物外墙敷设的光缆宜采用钢管保护，钢管出土部分不应小于（）m。
A.1.5
B.2
C.2.5
D.3
题型：单项选择题
The table above shows the number of tickets sold during each of the first 4 weeks after a movie was released. The producer of the movie received 10 percent of the revenue from every ticket sold with a guaranteed minimum of $200,000 per week for the first 4 weeks. If tickets sold for $4 each, how much did the producer receive for the first 4 weeks ？（）
A．$800,000
B．$900,000
C．$1,000,000
D．$1,200,000
E．$1,300,000
250,000×4×10%=100,000