一般认为菠菜与豆腐共同烹调是一种不科学的食物搭配。在菠菜中含有影响上述营养素吸收的物

要使e的产量最高，应采用下列哪条食物链？[ ]

A．a→b→e    

B．a→b→c→e     

C．a→b→c→d→e    

D．a→c→d→e

残疾二级预防的目的是（）。

A.限制或逆转由病损造成残疾

B.锻炼身体

C.经常保健

D.经常疗养

E.预防伤病

下列叙述正确的是( )。

A) 算法的执行效率与数据的存储结构无关
B) 算法的空间复杂度是指算法程序中指令(或语句)的条数
C) 算法的有穷性是指算法必须能在执行有限个步骤之后终止
D) 以上三种描述都不对

Part 3

Questions 19-25

·Read the following passage and answer questions 19-25.
·For questions 19-25, choose the correct answer A, B, C and D.
·Mark your answers on the Answer Sheet.
While still in its early stages, welfare reform has already been judged a great success in many states, at least UN is getting people off welfare, lt’s estimated that more than two million have left the roles since 1994.
In the past four years, welfare in rolls in Athens country has been cut in half. But 70 percent of the people who left in the past two years took jobs that paid less than $6 an hour. The result: The Athens country poverty rate still remains at more than 30 percent—twice the national average.
For advocates for the poor, that’s an indication that much more needs to be done.
"More people are getting jobs, but it’s not making their lives any better," says Kathy Lairn, a policy analyst at the center in budget and policy priorities in Washington.
Canter analysis of US census data nationwide found that between 1995 and 1996, a great percentage of single, fame-headed household were earning money on their own, but that average income for these households actually went down.
But for many, the fact that poor people are able to support themselves almost as well without government aid as they did with it is in itself a huge victory.
"Welfare was a poison. It was a toxin that was poisoning the family," says Rector, a welfare reform is changing the moral climate in low-income communities. It’s beginning to rebuild the work ethic, which is much more important.
Mr. Rector and others argued that once "the habit of dependency is cracked," then the country can make other policy changes aimed at improving living standards.

Why aren’t people enjoying better lives when they have jobs

A．Because their wages are low.

B．Because many families are divorced.

C．Because the cost of living is rising.

D．Because government aid is now rar

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