工程网络计划中，工作M的最早开始时间为第17天，其持续时间为5天。该工作有三项紧后工

An analyst gathered the following data about a company: The company had 1 million shares of common stock outstanding for the entire year. The company’s beginning stock price was $ 50, its ending price was $ 70, and its average price is $ 60. The company has 100000 warrants outstanding for the entire year. Each warrant allowed the holder to buy one share of common stock at $ 50 per share. How many shares of common stock should the company use in computing its diluted earnings per share（）

A. 1100000.

B. 1016667.

C. 1083333.

属于关节基本构造的结构是（）

A.关节唇

B.关节盘

C.关节面

D.关节结节

E.滑液囊

堆垛机行走主动轮表面磨损≤（）mm

A.3

B.4

C.5

D.6

叙词法

预聚输送系统停电后，预聚釜底部出料阀应（）。

A、完全打开

B、完全关闭

C、保持一定开度

D、停止真空泵