×
单选题
The dust cap on the air charging valve is removed, the external air source is connected to the valve stem and the swivel nut turned to open the air charging valve.
A
在充气活门上的防尘螺帽被拆下来了，这样新鲜的空气源才能被连接到气门杆和螺套上，以打开充气阀门。
B
在充气阀门上的可调节螺帽被拆除了，这样新鲜的空气源才能被连接到气门杆和螺套上，以打开充气阀门。
C
充气阀门上的防尘帽被拆除，外接气源连接到阀门杆，旋转螺母被旋开以打开充气阀门。
答案解析
正确答案：C
相关题目
单选题
Remove the bolt and the stop.
单选题
Cracks can have a maximum length of five inches.
单选题
Increase the temperature to decrease the cure time.
单选题
Do not omit nouns to make sentences shorter.
单选题
The side stay assembly has two folding toggles hinged together.
单选题
Remove and discard the preformed packing.
单选题
In procedures, give short, clear instructions and address the reader directly.
单选题
We do not use additives in this product.
单选题
The computer calculates the energy consumption from these values.
单选题
Use the passive voice only when it is really necessary.
