下列不属于股指期货套利方式中期现套利实施步骤的是（）。

A.套利机会转瞬即逝，所以无套利区间的计算应该及时完成

B.确定交易规模时应考虑预期的获利水平和交易规模大小对市场冲击的影响

C.先后进行股指期货合约和股票交易

D.套利头寸的了结有三种选择

When they got there,they found the people suffering the storm were________food and water supplies.[ ]

A. in want of  

B. in praise of

C. in honour of  

D. in place of