二次函数y=12（x-4）2+5的图象的开口方向______；对称轴为_____

在如图所示的各电路中，开关S闭合后，小灯炮 L₁、L₂都能发光的是（　 ）

Brazil has become one of the developing world’s great successes at reducing population growth but more by accident than design. While countries such as India have made joint efforts to reduce birth rates, Brazil has had better result without really trying, says George Martine at Harvard.

Brazil’s population growth rate has dropped from 2.99% a year between 1951 and 1960 to 1.93% a year between 1981 to 1990, and Brazilian women now have only 2.7 children on average. Martine says this figure may have fallen still further since 1990, an achievement that makes it the envy of many other Third World countries.

Martine puts it down to, among other things, soap operas and installment plans introduced in the 1970s. Both played an important, although in direct, role in lowering the birth rate. Brazil is one of the world’s biggest producers of soap operas. Globo, Brazil’s most popular television network, shows three hours of soaps six nights a week, while three others show at least one hour a night. Most soaps are based on wealthy characters living the high life in big cities.

“ Although they have never really tried to work in a message towards the problems of reproduction, they describe middle and upper class values ---- not many children, different attitudes towards sex, women working,” says Martine. “ They sent this image to all parts of brazil and made people conscious of behavior and other values, which were put into a very attractive package.”

Meanwhile, the installment plans tried to encourage the poor to become consumers. “ This led to an enormous change in consumption patterns and consumption was incompatible with unlimited reproduction.” says Martine.

小题1:According to the passage, the two factors that lead to the success of population control in Brazil are _______________________________________.

小题2:The underlined phrase “ put down to ” in paragraph 3 has the closest meaning to _________________________________.

小题3:What made Brazil the envy of many other Third World countries?

_________________________________________________________________

小题4:Why did the author say that soap operas helped in lowering the birth rate?

_________________________________________________________________

现在，在英国被诊断为疯狂压抑症而首次收容住院的人比美国因此病而收容住进公共和私人医院的人多9倍，尽管美国人口是英国的很多倍。
下面哪一项如果正确，最能解释上述情况( )

A．在英国，疯狂压抑症一词所指的患精神病的病人要比在美国所指的范围广。

B．美国收容住院的人既包括首次去诊所的人也包括直接收容住进医院的人。

C．在英国被诊断为患疯狂压抑症的病人被收容住进私人护理院的人的比例比收容住进公共医院的比例小。

D．寻求专职人员的帮助解决精神健康问题在美国被视为一种社会耻辱，而今再也不是这样了。

爱国情操：是一种世界性情感，是各民族在其发展的历史长河中形成的一种共同心理。据此定义，爱国情操的核心因素是( )

A．爱国认识

B．民族自豪感

C．爱国情感

D．民族自信心

酒精中毒透析的特征为（）

A.血乙醇含量>100mg／dl

B.血乙醇含量>200mg／dl

C.血乙醇含量>500mg／dl

D.血乙醇含量>800mg／dl

E.血乙醇含量>1000mg／dl