Is this the house_______Abraham Lincoln was born?
A.at where
B.which
C.in which
D.when
答案:C
(原创)已知平行四边形ABCD的三个顶点为A(-1,2),B(3,4),C(4,-2),点(x,y)在四边形ABCD的内部(包括边界),则z=2x-5y的取值范围是___________.
颅脑CT增强扫描不能显示病变的
A.形态
B.大小
C.位置
D.数目
E.病理分类