法洛（Fallot）四联症（）
A.肺性发绀
B.混合性发绀
C.淤血性发绀
D.缺血性发绀
E.心性混血性发绀
参考答案：E
— Would you mind if I opened the window now?
— ______. It's OK with me.[ ]
A. I wouldn't mind
B. With pleasure
C. By all means
D. You are welcome
若函数y=mx2+（m-1）x+3在[-1，+∞）上为减函数，则实数m的取值范围为______．
