城市树木的树种除了受该城市小气候及土壤因素影响外,还在很大程度上受()的影响。
A.人为活动
B.地理环境
C.工程设计
D.空气质量
参考答案:A
Assume that a firm has an expected dividend payout ratio of 20%, a required rate of return of 9% , and an expected dividend growth of 5%. What is the firm's estimated price-to-earnings (P/E) ratio()
A. 5.00.
B. 10.00.
C. 20.00.
血小板黏附率参考值范围是()。
A.17%~34%
B.35%~52%
C.53%~70%
D.71%~88%
E.89%~100%