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问题 单项选择题 A1/A2型题

关于感光效应与管电压的关系，正确的叙述是（）

A.感光效应与kV成正比

B.感光效应与kV成反比

C.感光效应与kV2成正比

D.感光效应与kV2成反比

E.感光效应与kVn成正比

答案

参考答案：E

问答题 简答题

“信用报告负面记录会跟随您一辈子。”这种说法对吗？为什么？
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填空题

Questions 14-18


·Using the information in the text, complete each sentence 14-18, with a word or phrase from the list below.
·For each sentence (14-18), mark one letter (A-G) on the Answer Sheet. Do not mark any letter twice.
  • A. professional and managerial employees
  • B. work staff
  • C. human-resource management
  • D. work force skills
  • E. important post
  • F. the improvement of worker’s basic skills
  • G. more money should be invested

The decisive factor in maintaining a firm’s competitive advantage is ______.
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