供应商的库存水平是评价供应商（）能力时要考虑的要素。
A.成本
B.服务与响应
C.可获得性
D.质量
参考答案：C
土鳖虫的别名有（）
A.蛰虫
B.地鳖
C.地鳖虫
D.金边地鳖
E.东方地鳖
He wouldn’t give up smoking _______ his doctor told him it was a matter of life and death.
A．except
B．after
C．until
D．in case
