以下属于规范操作的内容是（）。
A、DTY纸管上不到位
B、生头吸枪随手摆放
C、吸丝风机及时关闭
D、用脚踩分丝杆登高
参考答案：C
He used __________to buy him a book. [ ]
A his money left
B. his money remaining
C. his remained money
D. his money leaving
阿-斯综合征
