曲线
在点（0，-1）处的切线方程为 ________.
正确答案：
答案解析：
暂无解析
Senior members of the staff competed eagerly ________ the position of sales manager in the company.
A baby might show fear of an unfamiliar adult, _______ he is likely to smile and reach out to another infant.
则下列结论正确的是（）