接通汽化器加温装置,可防止汽化器结冰,但混合气余气系数将().
A.向贫油方向变化
B.向富油方向变化
C.保持不变
D.不能确定
参考答案:B
心肌梗死的合并症不包括()。
A.假性室壁瘤
B.附壁血栓
C.室间隔穿孔
D.房间隔膨出瘤
E. * * 肌功能不全
A. Sure. What is it B. It’s very nice of you to say so. C. It’s nothing. D. Have a nice trip! E. Certainly. Here you are.
A:I’m leaving for Hong Kong for a weekend break. B:______