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【判断题】
在酸性溶液,反应 S 2 O 8 2- +Mn 2+ →SO 4 2- +MnO 4 - 配平后为 5S 2 O 8 2- +2Mn 2+ +4 H 2 O=2MnO 4 - +10SO 4 2- +8H +A.
正确
B.
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【单选题】What were those American women tested for during the whole month?
A.
For the selection of the responsible persons.
B.
For the condition of different group of the women.
C.
To see if they were suitable for the space work.
D.
To see how they would react to conditions like those aboard the space shuttle.
【简答题】有平面坐标一定有球面坐标吗?有球面坐标不一定有平面坐标,为什么?
【单选题】男性，30岁，体检发现心尖部低调舒张期杂音，胸骨左缘第3肋间与胸骨右缘第2肋间可闻递减型舒张期杂音，血压140/50mmHg,为明确诊断，首选下列哪项检查
A.
心电图
B.
胸部X线
C.
超声心动图
D.
放射核素心室造影
E.
CT(计算机x线体层扫描)
【单选题】________，the search engine just gave me some brief introductions rather than the whole content of the book to read.
A.
Luckily
B.
Disappointedly
C.
Funnily
D.
Disappointingly
【单选题】男性患者，30岁，体检发现心尖部低调舒张期杂音，胸骨左缘第3肋间与胸骨右缘第2肋间可闻递减型舒张期杂音，血压 18.6/6.7kPa(140/50mmHg)，为明确诊断，首选下列哪项检查
A.
心电图
B.
胸部X线
C.
超声心动图
D.
放射性核素心室造影
E.
CT(计算机X线体层扫描)
【简答题】Few people can stand for the spirit of earlier America as much as Benjamin Franklin. He lived through almost the whole of the 18th century. He was born six years after the century began, and died ten ...
【单选题】男性，30岁，体检发现心尖部低调舒张期杂音，血压140/50mmHg,为明确诊断，首选下列哪项检查?
A.
心电图
B.
胸部X线照片
C.
超声心动图
D.
放射核素心血管造影
E.
CT
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