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【单选题】
抗生素使用错误的是A.
根据药动学特点选择抗生素
B.
病毒感染应预防性使用抗生素
C.
对长期大量使用素的病人，定期监测菌群变化及感染部位的细菌变化
D.
结合感染部位情况选药
E.
应考虑病原菌对抗生素的敏感性
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举一反三
【单选题】The passage suggests that bank managers failed to consider whether or not the service improvement mentioned ______.
A.
was too complicated to be easily described to prospective customers.
B.
made a measurable change in the experiences of customers in the bank's offices.
C.
could be sustained if the number of customers increased significantly.
D.
was an innovation that competing banks could have imitated.
【单选题】分析某样品中蛋白质含量,所得结果为 43.67% 、 43.90% 、 43.94% 、 43.98% 、 44.08% 、 44.11% ,用 Q 检验法 检验 43.67% 是否应舍弃?(当置信度为 95% , n=6 时, Q 6,0.95 =0.76 )
A.
应舍弃
B.
不应舍弃
【单选题】It is implied in the passage that _____.
A.
many industrialists feel no concern for the improvement of pollution control
B.
breathing low concentrations of urban dust does not necessarily sicken or kill people
C.
no acceptable biological mechanism has been suggested to explain the toxicity of low concentration of urban dust
D.
scientists have done nothing to reveal the mystery of the toxicity of low concentration of urban dust
【单选题】34gFeS0 4 ·7H 2 0样品受热脱水过程的热重曲线(样品质量随温度变化的曲线)如下图所示
A.
温度为78℃时固体物质M的化学式为FeSO 4 ?5H 2 O
B.
温度为l59℃时固体物质N的化学式为FeSO 4 ?3H 2 O
C.
在隔绝空气条件下，N得到P的化学方程式为FeSO 4 FeO+SO 3 ↑
D.
取适量380℃时所得的样品P，隔绝空气加热至650℃，得到一种固体物质Q，同时有两种无色气体生成，Q的化学式为Fe 2 O 3
【简答题】a nything 含义 、 a nyway 含义 、 anywhere 含义 、 a partment 含义
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