已知2x+y-1=0，则4x+2y=______．
∵2x+y-1=0，
∴2x+y=1，
∴4x+2y=2（2x+y）=2×1=2，
故答案为：2．
She was educated at Beijing University,_____ she went on to have her advanced study abroad. [ ]
A. after which
B. from which
C. from that
D. after that
骨显像的主要临床适应症是（）
A.肾盂积水
B.甲状旁腺功能低下
C.甲亢
D.骨转移瘤
E.心肌病
