2011年9月1日起施行的《个人所得税法》规定华侨和港、澳、台同胞在中国境内取得工资、薪金所得每月可附加减除的费用标准为()元。
A. 800元
B. 2000元
C. 3500元
D. 1300元
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Acustomer has requested an IBM System Storage DS8300 system for a new Exchange 2003 email solution to meet the following requirements: - 20% yearly growth - 25,000 mail boxes - approximately 50/50 mix of read/write operations The storage specialist has used Capacity Magic to calculate a base configuration of 46.7 TB raw capacity, 64 GB cache, and 24 ports for the DS8300. The storage specialist has been asked to model this configuration using the expected workload to verify that it is a viable solution. What is needed to start modeling()
A. 73GB 15k rpm drives
B. the amount of IOPS per mail box
C. the number of servers running Exchange
D. the Jetstress tool to emulate the Exchange environment
蛋白质的三级结构是指()
A. 肽链中某一区段氨基酸残基的相对空间位置
B. 多肽链中氨基酸的排列顺序
C. 整条多肽链中全部氨基酸残基的相对空间位置
D. 主要靠肽键形成的结构
E. 多肽链的主链结构
测温元件安装于负压管道(设备)中时,如果密封不良(管道内温度高于环境温度),则仪表指示将()。
A. 偏大
B. 偏小
C. 不变
D. 以上都有可能