Which of the following works was written by Jack London
A. The Call of the Wild
B. The Scarlet Letter
C. Great Expectations
D. Vanity Fair
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以原发性DNA损伤为检测终点的致突变试验是
A. LIDS试验
B. Ames试验
C. 基因正向突变试验 D.微核试验
D. 染色体畸变试验
—()you or he the teacher of English —Neither I nor he()the teacher of English.
Are; is
B. Is; are
C. Are; are
D. Is; is
下列灌肠的注意事项,哪项描述是错误的
A. 伤寒患者灌肠液量不得超过500ml
B. 急腹症、消化道出血、妊娠等禁忌灌肠
C. 肝昏迷患者可用肥皂水灌肠
D. 中暑患者可用4℃生理盐水进行大量不保留灌肠
E. 对顽固性失眠者可予保留灌肠进行镇静、催眠
使用破伤风抗毒素超过几天,需再次使用时应重新做过敏试验
A. 1d
B. 3d
C. 5d
D. 7d
E. 14d