MIPS常用来描述计算机的运算速度，其含义是 ( )A．每秒钟处理百万个字符 B．每

阅读理解。

                                   HOW AMERICANS LIVE

     New York is America's largest city, however, it may also be the country's loneliest city. People living

alone make up forty-eight percent of all households (家庭) on the island of Manhattan.

     "I think it's the best way to live," James Combo, a 35-year-old New York musician said,"If you want to

make a mess, you can make a mess. If you want to paint the walls a certain color, you can do it."

     In the USA, there are more single-person households than classic nuclear families----a married couple and

their natural children----according to a latest report. Other cities with high percentages (百分比) of single

households are Washington DC, St. Louis, Denver and San Francisco.

     The high number of single households shows today's values. People living alone, especially unmarried

women used to have something to do with sadness. That feeling is no longer true. Self-esteem (自尊) isn't

based on having children and being married any more.

1. New York may be the loneliest city of the USA because _______.

A. many people often feel lonely.

B. most of the people there often live alone.

C. there are nearly half of single-person households.

D. people can do what they like by themselves.

2. Which of the following can best explain the chart (图表) on the left of the text?

A. There are more single-person households than classic unclear families.

B. The high number of single households shows today's values.

C. People living alone make up 48% of all households in the world.

D. Unmarried women used to have something to do with sadness.

—Are you _____ now, Dave? I'm visiting you.

—Sorry, I'm _____ vacation with my mother.[ ]

A. in; in

B. in; on

C. on; on

D. on; in

高温瞬时灭菌为利用薄板换热器对啤酒液进行（）温（）时间的予处理后再进行灌装和贴标。

慢性肺心病缓解其不具有的体征是；（）

A.肺气肿体征

B.肺动脉瓣听诊区第二心音亢进

C.三尖瓣听诊区可闻及收缩期杂音

D.剑突下心脏收缩期搏动

E.右心衰体征

单个风险因素风险程度估计采用的方法（）。

A．简单估计法和树形估计法

B．简单估计法和复杂估计法

C．简单估计法和概率分析法

D．专家评估法和头脑风暴法