下列省区中,没有被北回归线穿过的是( )
A.广西壮族自治区
B.云南省
C.海南省
D.台湾省
北回归线穿过的省区有云南省、广西壮族自治区、广东省、台湾省.
故选:C.
Which of the following signs and symptoms would be an early indication that the client’s serum potassium level is below normal
A. Diarrhea.B. Tingling in the fingers.C. Sticky mucous membranes.D. Muscle weakness in the legs.
若直线y=x-2与抛物线y=ax2+bx+c相交于A(2,m)、B(n,3),抛物线对称轴为x=3,求抛物线解析式.