点火线圈QD134应用于()缸发动机。
参考答案:四、六
—Mary, would you like to visit the Science Museum with me?
—_______, but surfing the internet seems more interesting. [ ]
A. I'd love to
B. That's it
C. You're welcome
D. no, problem
影响空气过滤的主要因素错误的是()
A.粒径
B.细菌种类
C.过滤风速
D.介质纤维直径和密实性
E.附尘