人人享受卫生保健是体现()
A.公平公正原则
B.优先原则
C.效率、效益原则
D.价值原则
E.不伤害原则
参考答案:A
If there is _____ emergency, they have to travel three hours to get to ____ nearest hospital for help.
A.the; /
B.an; the
C./; the
D.an; a
下列计算正确的是( )
A.-7a+4b=-11ab
B.-3ab2-ab2=-4ab2
C.3x-5x=2x
D.3x2+x=4x3