当x取______时,式子(x-10)2+8有最小值等于______.
∵(x-10)2≥0,
∴当x-10=0,即x=10时,(x-10)2+8有最小值为8.
故答案为:10;8.
In crowded places like airports and railway stations, you take care of your luggage.
A.can
B.may
C.must
D.will
消化性溃疡的护理问题包括()
A.焦虑
B.潜在并发症有胃穿孔、上消化道出血
C.营养失调
D.腹痛
E.预感性悲哀