问题描述:
[单选]
设全集U=R,集合A={x|x≥-UA =()
A.{zl z><img src="//wximg.233.com/attached/image/20120915/20120915144384258425.gif" alt="" />)
B.{z J z<一<img src="//wximg.233.com/attached/image/20120915/20120915144348614861.gif" alt="" />)
C.{x|x≥<img src="//wximg.233.com/attached/image/20120915/20120915144378937893.gif" alt="" />)
D.{x|x≤-<img src="//wximg.233.com/attached/image/20120915/20120915144389088908.gif" alt="" />)
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