某市局安装程控交换机20000门，据调查每个市话用户平均话费收入是620元，该局程控

从传统的实体配送到现代物流活动，物流管理经历了（）阶段。

A.原材料物流

B.产品物流

C.一体化物流

D.供应链管理

肾癌最有诊断价值的X线表现是（）

A.肾脏轮廓增大不规则

B.肾脏斑点状钙化

C.肾盂肾盏受压、变形移位及僵硬毛糙

D.排泄性尿路造影，肾不显影

E.以上都不是

简述豚鼠的营养代谢特点。

A client is admitted to the hospital with an exacerbation of her chronic systemic lupus erythematosus (SLE). She gets angry when her call bell isn’t answered immediately. The most appropriate response to her would be（）

A. "You seem angry. Would you like to talk about it"

B. "Calm down. You know that stress will make your symptoms worse. "

C. "Would you like to talk about the problem with the nursing supervisor"

D. "I can see you’re angry. I’ll come back when you’ve calmed down. "

电动式动力转向系统（EPS）是一种直接依靠电动机提供辅助转矩的电动助力式转向系统，该系统仅需要控制电机电流的（）和（）。