某校建一座新教学楼,原计划投资50万元,实际比计划节约10%.实际投资多少万元?
50×(1-10%),
=50×0.9,
=45(万元);
答:实际投资45万元.
______________ twice a year, whether it is a car, a bus or a truck, is the rule that every driver must obey in this city.
A.Examining
B.Examined
C.Having been examined
D.Being examined
患者,男性,45岁,金属烤瓷全冠固定桥粘固后1年,基牙冷热刺激痛1周。
可能的原因是()
A.牙周创伤
B.继发龋
C.粘固粉溶解
D.固位体松动
E.以上都可能