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举一反三
【单选题】As high school students flock to social networking sites, campus police are scanning their Facebook and MySpace pages for tips to help break up fights, monitor gangs and prevent crime. Some students o...
A.
students’ casual attitude to private information
B.
the technical support offered by the websites
C.
the approval given by the students themselves
D.
the special right granted by the government
【单选题】下述妊娠母体的变化,错误的-项是( )
A.
子宫体积和容量逐渐增大
B.
乳腺和乳腺泡增生、乳房增大
C.
子宫下段形成,临产时可达7~10cm
D.
妊娠期血容量增加至32~34周达高峰
E.
由于子宫在左旋,故左侧肾盂肾炎更为常见