为了保持审计的连续性和审计结果的可比性，注册会计师对同一客户所进行的多次年度会计报表审计，应使用相同的重要性水平。()
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法律效力的一般原则是不溯及既往。 ()
A. 正确
B. 错误
Which of the following types of ethnic cultural expression is discussed in the passage？
A. The retelling of traditional narratives
B. The wearing of traditional clothing
C. The playing of traditional music
D. The celebration of traditional holidays
E. The preparation of traditional cuisine
The discussion of the regional bank (line 13-24) serves which of the following functions within the passage as a whole？
A. It describes an exceptional case in which investment in service actually failed to produce a competitive advantage.
B. It illustrates the pitfalls of choosing to invest in service at a time when investment is needed more urgently in another area.
C. It demonstrates the kind of analysis that managers apply when they choose one kind of service investment over another
D. It supports the argument that investments in certain aspects of service are more advantageous than investments in other aspects of service.
E. It provides an example of the point about investment in service made in the first paragraph.
使用药物治疗后，症状无明显缓解，哮喘持续发作已30小时，现应
A. 联合使用抗生素
B. 肾上腺素+倍氯米松雾化吸入
C. 氢化可的松静滴+沙丁胺醇
D. 抗生素+糖皮质激素+沙丁胺醇
E. 抗生素+沙丁胺醇
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