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When the man ________ the forest alone, he lost his way and felt very afraid.
11个月前
She looks sad. Could you please tell me that prevents her from being as happy as before? [ ]
1年前
根据课文内容填空。 在藏戏里,身份相同的人物所戴的面具,其颜色和形状基本相同。
1年前
已知pq都是质数,并且以x为一元一次方程px+5q=97的解是1,求p²-q的值
1年前
高等数学题: 若f'(x0)存在,则lim[f(x0+ah)-f(x0-bh)]/h=?当h→0时.
1年前