Many college graduates are willing to start online shops to get over the period ______ they have difficulty finding a satisfactory job.

A．where

B．when

C．which

D．that

库存的影响主要包括占用大量（）、发生库存成本、掩盖生产经营中存在的问题。

A.人员

B.设备

C.机器

D.资金