题干
I’ve never seen _________________ you.
A：as a clever boy a
B：as clever a boy a
C：the same clever boy a
D：a boy the same clever a
答案(点此获取答案解析）
B
A：as a clever boy a
B：as clever a boy a
C：the same clever boy a
D：a boy the same clever a
px+6=0的解集为M,方程x2+6x
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