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恩格尔定律认为，在收入相对比较低的时候，人们对生活用品也有较低需求。( )

A. 对
B. 错

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Questions 19 to 22 are based on the conversation you have just heard. What does the woman suggest about human resources

A. The personnel manager should be fired for inefficiency.
B. A few engineers should be employed to modernize the factory.
C. The entire staff should be retrained.
D. Better-educated employees should be promoted.

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Part A You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer--A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE.Now look at Question 1. What did the man say about the course

A. It’s not as hard as expected.
B. It’s too tough for some students.
C. It’s much more difficult than people think.
D. It’s believed to be the hardest optional course.

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在我国，由于各地区的经济发展极不平衡，造成了我国证券市场所特有的“板块效应”。( )

A. 对
B. 错

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安钠咖注射液处方如下苯甲酸钠1300g 咖啡因1301g EDTA-2Na 2g 注射用水加至10000ml 其中苯甲酸钠的作用是

A. 止痛剂
B. 抑菌剂
C. 主药之一
D. 增溶剂
E. 助溶剂

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恩格尔定律认为，在收入相对比较低的时候，人们对生活用品也有较低需求。( )

A. 对 B. 错

Questions 19 to 22 are based on the conversation you have just heard. What does the woman suggest about human resources

在我国，由于各地区的经济发展极不平衡，造成了我国证券市场所特有的“板块效应”。( )

安钠咖注射液处方如下 苯甲酸钠1300g 咖啡因1301g EDTA-2Na 2g 注射用水加至10000ml 其中苯甲酸钠的作用是

A. 对
B. 错

安钠咖注射液处方如下苯甲酸钠1300g 咖啡因1301g EDTA-2Na 2g 注射用水加至10000ml 其中苯甲酸钠的作用是