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读课文《十三岁的际遇》,下列说法不正确的一项是( )
①蔬菜 ②牛奶 ③水果 ④豆奶.
当曲线y=1+4-x2与直线kx﹣y﹣2k+4=0有两个相异的交点时,实数k的取值范围是( )
——These plans are all suitable. I haven't decided which one to choose.
——It's OK. You ________ plenty of time to make a decision.