由①得，x＞-1，
由②得，x≤2，
∴原不等式组的解集是-1＜x≤2．
—Jenny, I hate to say it, but you really must go!
—________.
A．All right, if you insist
B．Not likely
C．Mind your own business
D．You must be kidding
冷凝集素在以下哪一温度时与红细胞结合最好（）
A.4℃
B.22℃
C.32℃
D.37℃
E.42℃
