A．Twenty years.B．Nineteen years.C．Thirty years.D．Forty years.
A. Twenty years.
B. Nineteen years.
C. Thirty years.
D. Forty years.
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A．2:15.B．3:15.C．2:50.D．3:50.
A. 2:15.
B. 3:15.
C. 2:50.
D. 3:50.
A．Monday.B．Wednesday.C．Tuesday.D．Thursday.
A. Monday.
B. Wednesday.
C. Tuesday.
D. Thursday.
下列治疗措施中，不正确的是
A. 早期足量应用抗生素
B. 应用糖皮质激素
C. 加用免疫抑制剂
D. 抗氧化剂治疗
下列符合中度有机磷中毒时的胆碱酯酶活力是
A. 35%.
B. 25%.
C. 15%.
D. 10%.
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