［评估案例4-5］光华电器科技有限公司自制加工设备已使用约4年，经查，其间大修一次并于第三年更换过主件，平时为两班运转，评估人员根据历史统计数据资料和同类设备使用情况综合确定该设备在正常使用条件下的经济寿命为10年。评估人员对该设备的已使用时间进行了估算：该设备账面记录已使用时间为4年，但使用强度和频度较大，按照其运转时数和实际开机情况，使用时间为正常使用时间的2倍，即折合为8年；但该机大修过并于第三年更换过主要部件，相应减少了设备的磨损或增加了设备的服役期，考虑与其他部件的配合关系和能力发挥情况，综合估算已使用年限折合减少2年，为6年；设备的尚可使用年限为10－6＝4年。则根据公式计算成新率为（ ）%

A. looked smarter than the average person
B. was an unordinary boy when he was young
C. became well-known after an interview
D. achieved great sucess in the medical field

A. He failed to remove the bottle and it fell.
B. He was too young to carry the heavy bottle.
C. He had no confidence in taking the bottle.
D. He loosed his grip on the bottle deliberately.

A. She punished him by making him clean the kitchen.
B. She shouted to stop him from doing anything.
C. She allowed him to play in the milk first.
D. She taught him how to carry the bottle immediatedly.

A. find some water to clean the bottle
B. find a way to carry the bottle effectively
C. search for another bottle to hold the milk
D. see how to fill the bottle without dropping it