片山客户的标准品，径向跳动和端面跳动是如何测量的？采用什么量器具？
参考答案：
径向跳动，端面跳动以小外圆及小外圆端面为基准，使用平板和百分表测量。
Which of the following statements regarding the money supply and determination of short-term interest rates is least accurate（）
A. An increase in real GDP will shift the real money demand curve to the right.
B. On balance, financial innovation has decreased the demand for money.
C. An increase in the real money supply from an initial equilibrium situation will cause house-holds and businesses to sell interest-bearing securities.
矿井需要风量按井下同时工作的最多人数计算，每人每分钟供给风量不得少于（）。
A、6m3
B、5m3
C、4m3
