秦代色彩不分男女，崇尚什么色彩？

A. 缓进型高血压病累及肾脏
B. 肾动脉粥样硬化
C. 肾结核
D. 慢性肾盂肾炎

A. by injection pumps
B. at a time decided by the injection pump timing
C. by a signal opening the magnetic valves
D. at a time decided by the cam directly