Often there's no clear evidence one way or the other and you just have to base your judgment on i____. (直觉)
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He was dressed very casually, which made him look a t ____out of place at the reception. (少许;少量)
We love having our grandchildren visit, but they always leave such a m____for us to clean up afterwards. (脏乱状态)
随着充电循环次数的增加，二次电池容量衰减（ ）。
A. 不会发生
B. 可能发生
C. 可以避免
D. 必然发生
充电机的( )是指不需要操作人员对充电过程进行过多的干预。
A. 易用性
B. 经济性
C. 高效性
D. 安全性
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