汽油机保持某一转速不变,逐步改变节气门开度,则()
A.充气效率减小
B.机械效率增加
C.热效率减小
D.燃油消耗率增加
参考答案:A
阅读下面短文,写出括号中所给动词的正确形式,使短文意思完整。
My mother is very kind and easygoing, she helps me a lot. I 1_______ (take) good care of in my daily
life by her. When I'm in trouble, she always 2_______ (encourage)me to face my difficulties. I still remember
that once I 3______ (argue) with my best friend. My mother talked with me the whole night and finally helped
me solve the problem. With her help, I 4_______ (become) a top student in my class already. I believe she
5_______ (be) proud of me in the near future.
麦芽主治()
A.食积兼血瘀胸痛
B.食积兼外感表证
C.食积兼肝郁胁痛
D.食积兼胆结石
E.食积兼咳喘胸闷