浴血性贫血时，红细胞51Cr的T1/2是（） [">60天","100天","<14天","<10天"]
在Windows操作系统中“我的电脑”各级文件夹窗口中，如果需要选择多个不连续排列的文件，正确的操作是（）。 ["按A1t+单击要选定的文件对象","按Cm+单击要选定的文件对象","按Shift+单击要选定的文件对象","按C廿1+双击要选定的文件对象"]
TS3100磁带库最多支持24个磁带槽位。
城市社会学研究的意义。
A customer requires an 8-way 16GB AIX system. They are evaluating the following three systems： ？ p5-570 ？ p5-570 Express ？ p650 The pSeries technical specialist has been asked to explain the pros and cons of the three solutions. What information will help the customer decide on the best solution for their environment？（） ["The p5-570 Express can support DDR2 memory.","The p650 and p5-570 Express provide faster processors.","The p5-570 Express is limited to eight 1.5GHz processors.","Neither the p5-570 nor the p5-570 Express supports Capacity on Demand."]
Excel2003中，排序对话框中的“递增”和“递减”指的是（）
