常用于内分泌功能减退的动态功能试验是()
A.兴奋试验
B.抑制试验
C.激发试验
D.拮抗试验
E.负荷试验
参考答案:A
It is a bad habit to leave the office without _____ the lights.[ ]
A. putting out
B. putting on
C. taking off
D. turning off
冷球蛋白多为()
A.IgG
B.IgE
C.IgM
D.IgD
E.IgA