骨骼显像中放射性核素骨显像剂的聚集与哪些因素有关()
A.骨有机质代谢
B.骨骼血流
C.骨神经
D.骨无机盐代谢
E.骨折
参考答案:A, B, C, D, E
根据下面的图判断句子的正误,正确的写T,错误的写F。
( ) 1. My mother is wearing pants.
( ) 2. My grandfather is wearing a hat.
( ) 3. My grandmother is wearing a skirt.
( ) 4. My father is wearing a sweater.
( ) 5. I am wearing pants and a skirt.
含有未知数的等式称为方程;方程一定是等式,而等式不一定是方程.______.