LKJ监控装置的出库良好率必须达到（）％。
参考答案：100
Up to now, no one has come up with a（n） explanation of why dinosaurs died out, and it remains a mystery．
A．astonishing
B．amusing
C．convincing
D．puzzling
标准贷记卡普卡的年费可以用（）积分来换。
A.1000
B.2000
C.3000
D.4000
