成本逼近法中，农地取得费的计息期为（）。
A.整个开发期
B.1／2开发期
C.1／4开发期
D.3/4开发期
参考答案：A
Zheng He had over 300 ships, _______ some were over 150 meters long and could carry up to 1,000 people.
A．that
B．which
C．of which
D．on which
通过眼神的接触，可以（）
A、观察反馈
B、吸引注意
C、调控讲话
D、以上都对
