【多选题】关于子网掩码描述正确的是?
C.
通过子网掩码对IP地址进行屏蔽(与)运算,区分网络ID和主机ID
【单选题】“Ask not what your country can do for you; ask what you can do for your country” is an example of __________.
【单选题】一个组织在所有的计算机上都安装了防病毒软件。这种软件可以预防病毒感染,阻止病毒复制,在发生病毒感染后检测被感染的文件,标记受到影响的系统组件,并从被感染的组件中删除病毒。然而依赖防病毒软件的一个主要风险是防病毒软件可能()。
【单选题】Suppose a typical worker in India can produce 32 units of product in an eight-hour day, while a typical worker in Bangladesh can produce 30 units of product in a 10-hour day. We can conclude that ____...
A.
worker productivity in Bangladesh is higher than in India.
B.
the standard of living will likely be higher in India than in Bangladesh.
C.
productivity is 4 units per hour for the worker in Bangladesh and 3 units per hour for the worker in India.
D.
there will be no difference between the standard of living in India and Bangladesh.
【单选题】业务处理: 1、从银行取得九个月的借款400000元存入银行; 2、购入甲材料5000千克,单价9元,增值税税率16%,款项尚未支付; 3、生产A产品领用原材料120000元,生产车间一般耗用4200元,管理部门耗用2000 元; 4、月末分配工资费用,B产品生产工人工资65000元,厂部管理人员6000元; 5、计提本月固定资产折旧,其中车间折旧12000元,厂部6500元; 6、将本月发生的制...
【单选题】“Ask not what your country can do for you; ask what you can do for your country” is an example of __________.