患者，男，60岁。半个月前，因食生冷瓜果后出现呃逆。现病人呃声低长无力，气怯声低，泛吐清水，脘腹不适，喜温喜按，手足不温，便溏，舌淡苔白，脉细弱。

若呃声难续，气短乏力，面色萎黄者，可用 （）

A.补中益气汤

B.香砂六君子汤

C.肾气丸

D.旋覆代赭汤

E.附子理中丸

The subdivision of major project deliverables, as identified in the scope statement, into smaller, more manageable components is called ______ .

A．parametric estimation

B．create WBS

C．feasibility analysis

D．benefit-cost analysis