氩气流量计的作用是（）。
A、任意调整工作需要的氩气流量值
B、启闭气路
C、将高压氩气降至工作压力
参考答案：A
My morning _____ includes jogging in the part and reading newspapers over breakfast. [ ]
A. drill
B. action
C. regulation
D. routine
They are going to____ a tall building____the middle of the town. [ ]
A. make; in
B. build; in
C. work; as
D. work; like
