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问题 单项选择题

骨巨细胞瘤患者其肿瘤活检病理报告；骨巨细胞瘤Ⅲ级。治疗首选

A．截肢术＋全身化疗

B．刮除植骨术

C．刮除灭活植骨术

D．刮除骨水泥充填术

E．刮除灭活骨水泥充填术

答案

参考答案：A

单项选择题

You are taking over a project and determine the following：Activity B has an early finish(EF)of day 3，a late finish(LF)of day 6，and an early start(ES)of day 2．Activity L is being done by a hard-to-get resource．The cost performance index(CPI) is 1.1 and the schedule performance index(SPI)is 0.8．Based on this information，what would you be more concerned about ？（）

A．Floa

B．Resource

C．Cos

D．Schedul
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选择题

土壤中的水分被大树的根吸收后，是下列哪种组织把水运输到叶子上去的[ ]

A．

B．

C．

D．
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