Which of the following statements is NOT true regarding arrow digramming method

A) Schedule activities are represented by arrows.
B) The length of the arrow represents the expected duration of the activity.
C) The tail of the arrow represents the start of the activity.
D) The head of the arrow represents the finish of the activity.

每天早晨，新华社播报的人民币汇价，采用的是( )。

A．间接标价法

B．直接标价法

C．中间价标价法

D．银行买入价标价法