ETF基金份额折算比例以四舍五入的方法，保留小数点后（ ）。
A．2位
B．5位
C．7位
D．8位
参考答案：D
Your vessel has lifeboats on both sides. Lifeboat No.2 is located（）.
A.forward of lifeboat No.4 on the starboard side
B.forward of lifeboat No.4. on the port side
C.aft of lifeboat No. 1 on the starboard side
D.All of the above
