有文献记载:19世纪,它造就了全世界现代化大机器工业的文明,替代了英国和欧洲大机

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问题:

有文献记载:19世纪,它造就了全世界现代化大机器工业的文明,替代了英国和欧洲大机器工业的文明。其中的“它”是指   [     ]

A.改良型蒸汽机                         

B.内燃机

C.飞机                                 

D.互联网

考点:人类迈入“电气时代”(电的广泛使用,内燃机,爱迪生,贝尔,汽车,飞机)
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希赛IT教育研发中心要建立一个22台微机组成的局域网,请你根据目前所掌握的技术,回答如下问题。

若以后进行了网络升级,但计算机不变,则应替换下哪些网络设备,替换下的设备能否继续使用

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有以下四个命题,其中真命题的个数有(  )

①“若xy=1,则x,y互为倒数”的逆命题;

②“相似三角形的周长相等”的否命题;

③“若b≤-1,则方程x2-2bx+b2+b=0有实根”的逆否命题;

④“若A∪B=B,则A⊇B”的逆否命题.

A.①②

B.②③

C.①③

D.③④

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胸10-11椎体骨折伴不全截瘫,其脊髓损伤的平面位于().

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《执业医师法》实施前取得医学专业技术职称者()
执业医师资格考试制度规定的条件之一是()

A.经相应职称评审发给执业证书,取得相应的专业职称系列资格

B.经医学本科学历教育,具备申请医师资格考试的基本条件

C.经资格认定取得执业证书,取得开展诊疗活动资格

D.经注册取得执业证书才具备合法行医条件

E.申请经批准发给执业证书,具备医师行业准入资格

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Work looks a better cure for poverty than welfare Especially as fewer and fewer countries will be able to afford to pay potential workers to stay at home a Victorian idea is back in favour: many poor people are better off when they are pulled back into the labour market. The idea revived first in the United States. There, in its harshest form, the unemployed work in exchange for welfare. But countries with governments to the left of America’s, including Labour Australia and Socialist France, are now also exploring ways to link income support and employment policy.

Coming from different directions, the right and the left are gradually finding new common ground. For the right, it seems deplorable to encourage the poor to rely on the state for cash, because they get hooked on government help and accustomed to being poor. For the left, it seems deplorable to allow workers to drop out of the job market for long periods, because it makes it harder for them to find new jobs. For both, the answer is to get the poor to work.

Most industrial countries have a two-tier system of social protection: a social-security scheme, where workers and their bosses make regular contributions in exchange for payments to workers when they are unemployed, sick or retired; and a safety-net, to give some income to those poor people who have exhausted their social insurance or who have none The former is usually not means-tested but, for the unemployed, is of limited duration; the latter is almost always tied to income The public tends to approve of contributory benefits, which is what designers of such schemes intended.

Safety-net benefits carry no such sense of entitlement, and are less popular. Yet they have grown more rapidly in large part because the 1980-82 recession increased the number of people of working age who had exhausted their right to contributory benefits. And an increasing proportion of the poor are people for whom the contributory systems were never designed: the young and lone mothers. In consequence, payments which carry a clear entitlement have become less significant, compared with those which appear to depend purely on state charity.

The rise in the bill for the unpopular kind of social protection comes at a time when governments want to curb state spending. It comes, too, at a time when many countries have done almost everything they can think of to protect the poor. A decade ago many on the left argued that poverty was usually caused by circumstances outside the control of the poor—a lack of jobs, disability, old age, racial discrimination, broken marriages. One way or another, governments have tried to tackle most of these problems. Still the poor remain.

The general attitude of the public towards benefits is that()

A. entitlement should depend on contributions

B. young people and lone mothers should receive them

C. charity should be a matter for the state

D. safety-net benefits are too expensive

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