同一台发动机的转速不同时,应对应不同的配气相位角,转速降低()
A.气门开启提前角加大
B.气门开启提前角减小
C.气门关闭迟后角加大
D.气门关闭迟后角减小
参考答案:B, D
谈判过程结束的标志是______
A.妥协让步 B.签订协议C.宣告终止合作 D.激烈冲突
— Did you give your father ______?
— Yes, I advise he ______ smoke. [ ]
A. an advice; should giving up
B. any advice; give up
C. any advice; giving up
D. a piece of advice; to give up