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短文改错 I like riding my bike．Though it is not very new, but it is my best friend．I find very convenient to go anywhere with a bike．Riding gives me not only exercises but also pleasure．I use my bike almost in summer when the weather is warm and dry．It can be very pleasant in winter when it is cold and rain is pour down．It can also be very dangerous．Of course I will be very carefully on my bike．In fact, accidents are not the only problem．Once I went to bookstore on my mother's bike to buy some books and come out to find the bike missing．Now I have two strong lock． 改错:
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【单选题】女性患者, 自觉腹部下坠,腰酸、走路及下蹲时更明显。阴道内脱出物在平卧休息后能自行还纳,患者白带增多,经妇科检查后诊断为子宫 I度脱垂, 宫颈外口水平低于坐骨棘水平,未达到处女膜缘,宫颈及宫体仍位于阴道内。该程度子宫脱垂无须治疗,注意休息即可恢复。 防止子宫脱垂的重要结构是 ( )
A.
子宫阔韧带
B.
子宫圆韧带
C.
子宫主韧带
D.
子宫骶韧带