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题目：
多选题
A能同时进行模拟和数字通信
B数字信号允许双向通信
C不支持多主站通信
D使用OSI模型的1、2、7层
答案：
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铠装热电偶与一般热电偶相比，更适合于测量快、响应高的场合，但不适用有弯曲安装的场合。
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按照货币主义的观点，一国长期国际收支顺差是因为（）。
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具有异染颗粒的细菌是()
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田径课程的教学通常是最让体育老师头疼的项目，因为大多数的学习内容都很枯燥，特别是中长跑项目，很多同学还会有畏难甚至排斥情绪，这些都会给教学带来一定的难度，影响教学效果。问题：作为一名体育老师，谈谈你应该如何激发学生的学习兴趣，提高学生在田径课程中的学习积极性？
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所有锚网索支护巷道必须配备锚杆拉力计和锚杆角度测量仪，并将检测的（）记录到牌板上。
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不宜做肛门、直肠内镜检查的患者为()
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自动喷水系统中至少每月进行一次检查与维护的项目包括（）。
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Income Income may be national income and personal income. Whereas national income is defined as the total earned income of all the factors of production-namely, profits, interest, rent, wages, and other compensation for labor, personal income may be defined as total money income received by individuals before personal taxes are paid. National income does not equal GNP (Gross National Product) because the factors of production do not receive payment for either capital consumption allowances or indirect business taxes, both of which are included in GNP. The money put aside for capital consumption is for replacement and thus is not counted as income. Indirect taxes include sales taxes, property taxes , and excise taxes that are paid by businesses directly to the government and so reduce the income left to pay for the factors of production. Three-fourths of national income goes for wages, salaries, and other forms of compensation to employees. Whereas national income shows the income that the factors of production earn, personal income measures the income that individuals or households receive. Corporation profits are included in national income because they are earned. Out of these profits, however, corporation profit taxes must be paid to the government, and some money must be put into the business for expansion. Only that part of profits distributed as dividends goes to the individual; therefore, out of corporation profits only dividends count as personal income. The factors of production earn money for social security and unemployment insurance contributions, but this money goes to government (which is not a factor of production), not to individuals. It is therefore part of national income but not part of personal income. On the other hand, money received by individuals when they collect social security or unemployment compensation is not money earned but money received. Interest received on government bonds is also in this category, because much of the money received from the sale of bonds went to pay for war production and that production no longer furnishes a service to the economy. The money people receive as personal income may be either spent or saved. However, not all spending is completely voluntary. A significant portion of our income goes to pay personal taxes. Most workers never receive the money they pay in personal taxes, because it is withheld from their paychecks. The money that individuals are left with after they have met their tax obligations is disposable personal income. Disposable income can be divided between personal consumption expenditures and personal savings. It is important to remember that personal saving is what is left after spending. It can be easily seen from this passage that the government levies tax on（）
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叙述一串红的栽培要点。
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训练课是散打训练过程中（）。