Though the social problems Jerry Springer talks about appear distasteful, the audience ________. A) remain fascinated by them B) are ready to face up to them C) remain indifferent to them D) are willing to get involved in them
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举一反三
【单选题】(2004上海卷)下列离子方程式中正确的是
A.
硫化亚铁放入盐酸中 S 2- + 2 H + → H 2 S ↑
B.
硫酸铜溶液中通入硫化氢 Cu 2+ + H 2 S→ CuS↓ + 2 H +
C.
氯化铝溶液中加入过量氯水 Al 3+ + 4NH 3 •H 2 O→ AlO 2- + 4NH 4 + +2H 2 O