题目内容

浆细胞自血病一般继发于

A. 慢性淋巴细胞白血病
B. 多发性骨髓瘤
C. 急性淋巴细胞白血病
D. 传染性单核细胞增多症
E. 传染性淋巴细胞增多症

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根据《茶经》记录,陆羽精心设计了专用的饮茶器具。()

A jewellery company makes rings (R) and necklaces (N).
The resources available to the company have been analysed and two constraints have been identified:
Labour time 3R + 2N ≤ 2,400 hours
Machine time 0·5R + 0·4N ≤ 410 hours
The management accountant has used linear programming to determine that R = 500 and N = 400.
Which of the following is/are slack resources?
(1) Labour time available
(2) Machine time available

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2

Which of the following statements is true?

A. The target cost will decrease and the cost gap will increase
B. The target cost will increase and the cost gap will decrease
C. The target cost will remain the same and the cost gap will increase
D. The target cost will remain the same and the cost gap will decrease

保管不当,茶叶中的各种活性成分发生氧化、降解、转化,从而引起茶叶变质、陈化。()

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