飞行中,无线电高度低于英尺不得放减速板:().
A、2000
B、1500
C、1000
D、500
参考答案:C
牙周病的影响因素不包括
A.吸烟
B.牙石
C.菌斑
D.家庭因素
E.营养
The preferred stock of the Delco Investments Company has a par value of $150 and a dividend of $11.50. A shareholder's required return on this stock is 14%. What is the maximum price he would pay()
A. $82.14
B. $150.00
C. $54.76.