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【单选题】
29岁女,第一胎32,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.
停腹痛,阴道流血
E.
剧烈腹痛,下腹按压似板状
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【判断题】对于单自由度系统而言,无论质量是在水平面还是在斜面上运动,运动微分方程都是相同的。( )
A.
正确
B.
错误
【单选题】Thinking is any mental activity that helps us _________ or solve a problem, make a decision, or fulfill a desire to understand.
A.
duplicate
B.
simulate
C.
formulate
D.
verify
【简答题】In many American families, parents feel that children should make important decisions ________. A) to themselves B) on themselves C) of themselves D) by themselves
【判断题】货物的外包装上印刷有一只酒杯,这种标增属于警告性标志。
A.
正确
B.
错误
【单选题】According to the author, the function of the structured-inquiry method is
A.
to make decisions by debate.
B.
to apply the Internet and wireless computer technology.
C.
to brake on the thinking process, slowing it down.
D.
to create a level of conceptual clarity.
【判断题】引起机床振动的振源有面内振源和机外振源两个方面。
A.
正确
B.
错误
【判断题】( )引起机床振动的振源有机内振源和机外振源两个方面。
A.
正确
B.
错误
【判断题】引起机床振动的振源有面内振源和机外振源两个方面。A. √ B. ×
A.
正确
B.
错误
【判断题】引起机床振动的振源有面内振源和机外振源两个方面。()
A.
正确
B.
错误
【简答题】The member countries of the UN and its specialized agencies give guidance and make decisions on______in regular meetings held throughout each year.
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