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运动员在比赛中推铅球,铅球的行进高度y(m)与水平距离x(m)之间的关系用如图2所示的二次函数图象表示.(铅球从A点被推出,实线部分表示铅球所经过的路线) (1) 由已知图象上的三点,求y与x之间的函数关系式. (2)求出铅球被推出的距离.
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【判断题】辅导员是开展大学生思想政治教育的骨干力量，是高校学生日常思想政治教育和管理工作的组织者、实施者和指导者。辅导员应该努力成为学生的人生导师和知心朋友。
A.
正确
B.
错误
【简答题】"A child is dying---out of breath!" I had just begun my working day in the city when these words came through the radio of the police car I was driving. I turned on the red lights and siren(警笛)and dro...
【多选题】加强和改进大学生思想政治教育的紧迫性主要在于（）。
A.
加强和改进大学生思想政治教育是确保社会主义制度健康运行的有效措施
B.
加强和改进大学生思想政治教育是确保高校大学生在激烈的意识形态领域中保持清醒头脑的需要
C.
加强和改进大学生思想政治教育是确保科学发展观和“以人为本”理念落到实处的需要
D.
加强和改进大学生思想政治教育是确保高校大学生健康发展的需要
【简答题】《关于进一步加强和改进大学生思想政治教育的意见》明确指出，________是大学生思想政治教育的重要环节，对于促进大学生了解社会、了解国情、奉献社会、锻炼毅力，增强社会责任感具有不可替代的作用。
【多选题】Iris didn't want to sink into the same trap again, so she asked closely, "are you not with Sarah any more? is that what you've come here to tell me?" Jasper answered, "i wish you could just accept kno...
A.
Jasper was still engaged to be married
B.
Jasper had refused Sarah and wanted to build love relationship with her
C.
Jasper was a poor, poor man to know who he was in love with and she wanted to give another chance to him
D.
Jasper was trying again to set her into his trap and lured her to keep the relationship with him without love and future. she just escaped from a close call.
【简答题】A doctor entered the hospital hurriedly after being called in for an important surgery ( 外科手术 ). He found the boy's father in the hall waiting worriedly. On seeing him, the father cried out, "Why did ...
【简答题】Last summer I spent a two-week vacation at my aunt's house My aunt lives alone in a mountain village. There is a small river nearby. One morning I went fishing in the river. Two women were washing clo...
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