骊山陵的内围墙长为2.5公里，外围墙为6公里。

Different weather makes people feel different.It influences health, intelligence(智力) and feelings.

　　In August, it is very hot and wet in the southern part of the United States.People there have heart trouble and other kinds of health problems during this month.In the Northeast and the Middle West, it is very hot at some times and very cold at other times.People in these states(州) have more heart trouble after the weather changes in February or March.

　  The weather can also influence intelligence.For example, in a 1983 report by scientists, IQ(智商) of a group of students was very high when a very strong wind came, but after the strong wind, their IQ was 10% lower.The wind can help people have more intelligence.Very hot weather, on the other hand, can make it lower.Students in many schools of the United States often get worse on exams in the hot months of the year (July and August).

　　Weather also has a strong influence on people’s feelings.Winter may be a bad time for thin people.They usually feel cold during these months.They might feel unhappy during cold weather.But fat people may have a hard time in hot summer.At about 18℃, people become stronger.

　Low air pressure(气压) may make people forgetful(健忘).People leave more bags on buses and in shops on low-pressure days.People feel best at a temperature of about 18℃.

Are you feeling sad, tired, forgetful, or unhappy today? It may be the weather’s problem.

根据短文内容，从A、B、C、D四个选项中选择最恰当的答案。

小题1:What can cause problems on health？

A．Hot and wet weather

B．A strong wind

C．Warm weather

D．Low air pressure小题2:A report shows that people may have more intelligence when ______ comes.

A．rain

B．a strong wind

C．very hot weather

D．low air pressure小题3:According to(根据) the writer, fat people may feel bad in ______ weather.

A．cold

B．cool

C．warm

D．hot小题4:The writer wants to tell us that ______.

A．hot and cold weather influences all people in the same way

B．weather influences people’s behaviour

C．IQ changes when weather changes

D．people feel good on low pressure days小题5:Which is the best title(标题) for this passage？

A．Hot Weather Causes Health Problems

B．Different Weather Makes People Feel Bad

C．Weather Influences Feelings

D．Weather Influences Health, Intelligence and Feelings

放射性药品标记的颜色是

A．三日极量
B．二日常用量
C．二日极量
D．三日常用量
E．七日常用量

80多年来，中 * * 党为了民族独立、国家富强和人民幸福进行了艰苦卓绝的斗争，取得了举

世瞩目的成就，谱写了中 * * 伟大复兴的壮丽篇章。历史雄辩地证明了(    )

①坚持 * * 党的领导是社会主义现代化建设顺利进行的根本保证

② * * 党从其诞生起就是中国的执政党

③没有 * * 党就没有中国特色社会主义

④中 * * 党是伟大、光荣、正确的马克思主义政党

A．①③④

B．①②③

C．①②④

D．②③④

臭氧层是一种天蓝色、有臭味的气体，臭氧层可以吸收和过滤太阳光中大量的[ ]

A．红外线

B．可见光

C．宇宙射线

D．紫外线

家庭和社会应协助儿童建立自我认同，增进其自我成长的能力，这是儿童期心理和社会型发展的关键任务，这同时体现了儿童的需要之一，即( )。

A．获得基本生活照顾的需要

B．获得良好心理发展的需要

C．获得良好的家庭生活的需要

D．满足学习的需要

E．免于被剥削伤害的需要。