皮皮学,免费搜题
登录
搜题
【简答题】
(1) Life can be tough for immigrants in America As a Romanian bank clerk in Atlanta puts it to find a good job "you have to be like a wolf in the forest - able to smell out the best meat" And if you can't find work, don't expect the taxpayer to bail you out. Unlike in some European countries, it is extremely hard for an able-bodied immigrant to live off the state. A law passed in 1996 explicitly bars most immigrants, even those with legal status, from receiving almost any federal benefits. (2) That is one reason why America absorbs immigrants better than many other rich countries, according to a new study by the University of California. The researchers sought to measure the effect of immigration on the native-born in 20 rich countries, taking into account differences in skills between immigrants and natives, imperfect labor markets and the size of the welfare state in each country. (3) Their results offer ammunition for fans of more open borders. In 19 out of 20 countries, the authors calculated that shutting the doors entirely to foreign workers would make the native-born worse off. Never mind what it would do to the immigrants themselves, who benefit far more than anyone else from being allowed to Cross borders to find work. (4) The study also suggests that most countries could handle more immigration than they currently allow. In America a one-percentage point increase in the proportion of immigrants in the population made the native-born 0.05% better off The opposite was true in some countries with generous or ill-designed welfare states, however. A one-point rise in immigration made the native-born slightly worse off in Austria, Belgium, Germany, Luxembourg, the Netherlands, Sweden and Switzerland. In Belgium, immigrants who lose jobs can receive almost two-thirds of their most recent wage in state benefits, which must make the hunt for a new job less urgent. (5) None of these effects was large but the study undermines the claim that immigrants steal jobs from natives or drag down their wages Many immigrants take jobs that Americans do not want, the study finds. This “smooths” the labor market and ultimately creates more jobs for locals. Native-owned grocery stores do better business because there are immigrants to pick the fruit they sell. Indian computer scientists help American software firms expand. A previous study found that because immigrants typically earn less than locals with similar skills, they boost corporate profits, prompting companies to grow and hire more locals.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】下列关于烷烃和烯烃的说法中,不正确的是
A.
它们所含的元素种类相同,但通式不同
B.
烯烃中碳原子数>=2,烷烃中碳原子数>=1
C.
含碳原子数相同的烯烃和烷烃互为同分异构体
【单选题】首层地面垫层为柔性垫层(如砂垫层、炉渣垫层)时,可用于支承( )面层材料。
A.
瓷砖
B.
硬木拼花板
C.
粘土砖或预制混凝土块
D.
马赛克
【判断题】宗祠是中国传统的祭祀场所之一。 作为闽南宗族组织的象征性标志,它既有举行祭祀和其他宗族活动的实用功能,又有教化、艺术和审美等方面的文化功能。( )
A.
正确
B.
错误
【单选题】当首层地面垫层为柔性垫层(如砂垫层、炉渣垫层或灰土垫层)时,可用于支承( )面层材料。
A.
瓷砖
B.
硬木拼花板
C.
黏土砖或预制混凝土块
D.
马赛克
【单选题】当首层地面垫层为柔性垫层(如:砂垫层、炉渣垫层或灰土垫层)时,可用于支承 面层材料。
A.
瓷砖
B.
硬木拼花板
C.
粘土砖或预制混凝土块
D.
马赛克
【简答题】如图所示电路中直流电压源的电压为24V,且电路原已达稳态,t=0时合上开关S,求:
【单选题】下列关于烷烃和烯烃的说法中,不正确的是
A.
它们所含元素的种类相同,但通式不同
B.
均能与氯气发生反应
C.
烯烃分子中的碳原子数≧ 2 ,烷烃分子中的碳原子数≧ 1
D.
含碳原子数相同的烷烃和烯烃互为同分异构体
【单选题】当首层地面垫层为柔性垫层(如砂垫层、炉渣垫层或灰土垫层)时,可用于支承(    )面层材料。
A.
瓷砖    
B.
硬木拼花板
C.
陶瓷锦砖    
D.
黏土砖或预制混凝土块
【简答题】含量均匀度的定义是什么?检查对象是什么?
【单选题】下列关于烷烃和烯烃的说法中,不正确的是( )
A.
它们所含元素的种类相同,但通式不同
B.
烯烃分子中的碳原子数至少为 2 ,烷烃分子中的碳原子至少为 1
C.
含碳原子数相同的烯烃和烷烃不互为同分异构体
D.
烷烃分子中所有碳原子不可能在同一平面内,烯烃分子中所有碳原子肯定在同一平面内
相关题目: