FOCKE350小盒包装机干燥鼓1的烟包推杆推烟时发生挤烟触发推杆检测器会引发第一干燥鼓的（）故障。
参考答案：烟包推杆
Much to our surprise, his new book became an___ _ success. [ ]
A. instant
B. instructive
C. interesting
D. inexpensive
甲、乙、丙三人骑自行车匀速行驶，甲在1h内行驶15km；乙在3min内行驶750m；丙行驶100m需24s；则三人骑车速度的快慢为[ ]
A.甲最快，丙最慢
B.甲最慢，丙最快
C.乙最快，甲最慢
D.三人一样快
