清单计价规范用的是（）。
A、总价合同
B、全费用单价合同
C、部分费用单价合同
D、成本加酬金合同
参考答案：B
Alexander tried to get his work _____ in the medical circles. [ ]
A. to recognize
B. recognizing
C. recognize
D. recognized
上行超速保护是什么意思？
