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【判断题】
标准差指标数值越大,说明总体中各单位标志值的变异程度就越大,则平均指标的代表性就越小。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】John’s face (lit up) with a smile and he said, “You see, I was right. ”
A.
looked prettier
B.
turned red
C.
burned hot
D.
became brighter
【单选题】患者，女，29岁。孕3产0，妊娠34周。第一胎人工流产，第二胎为脊柱裂畸形，于妊娠24周时引产。此次妊娠早期无异常情况。妊娠32周时B超检查提示：羊水偏多，胎儿大于妊娠月份，未见明显畸形。孕妇体型肥胖，有多饮、多尿、多食史。可能的诊断是
A.
妊娠期糖尿病
B.
胎儿宫内窘迫
C.
胎儿畸形
D.
母体与胎儿血型不合
E.
巨细胞病毒感染
【单选题】29岁女,第一胎32周,B超提示为前置胎盘,主要的临床表现特点是
A.
无诱因的阴道流血
B.
持续性腹部疼痛
C.
摔伤后腹部疼痛
D.
停经后腹痛，阴道流血
E.
剧烈腹痛，下腹按压似板状
【简答题】A．It is very commercial. B．It is very noisy. C．It is very insecure. D．It is very unfriendly.
【单选题】It was a nice house, but ________ too small for a family to live in.
A.
rarely
B.
fairly
C.
rather
D.
pretty
【单选题】This is _____ computer. [ ]
A.
very a nice
B.
a very nice
C.
very nice a
D.
very nice
【单选题】We know it ________. It enjoys the music ________. [ ]
A.
very well, very well
B.
very much, very much
C.
very well, very much
D.
very much, very well
【单选题】【A2 题型】 29岁女,第一胎32周,B超提示为前置胎盘,主要的临床表现特点是
A.
无诱因的阴道流血
B.
持续性腹部疼痛
C.
摔伤后腹部疼痛
D.
停经后腹痛,阴道流血
E.
剧烈腹痛,下腹按压似板状
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