下列药品中不属于麻醉药品的是A．咖啡因 B．吗啡 C．可待因 D．可卡因 E．阿片

胃良性溃疡（）

A．黏膜皱襞中断消失、管腔狭窄、腔内充盈缺损、管壁僵硬、蠕动消失 

B．黏膜皱襞增宽纡曲、管腔狭窄、腔内充盈缺损、管壁僵硬、蠕动消失 

C．黏膜皱襞中断消失、管腔扩张、腔内充盈缺损、管壁僵硬、蠕动减弱 

D．黏膜皱襞中断消失、管腔狭窄、腔内充盈缺损、管壁柔软、蠕动减弱 

E．黏膜皱襞增宽纡曲、管腔扩张、腔内充盈缺损、管壁柔软、蠕动减弱

据报道，某星球大气中含有一种称为硫化羰（COS）的化合物，其分子结构与二氧化碳类似，能在氧气里燃烧。下列关于硫化羰的说法正确的是[    ]

A．二氧化碳是非极性分子而硫化羰是极性分子

B．二氧化碳与硫化羰均无还原性

C．固体硫化羰是原子晶体

D．硫化羰是一种酸性氧化物

Elderly adults who regularly drink green tea may stay more active and independent than their peers over time，according to a Japanese study that covered thousands of people．

Green tea contains antioxidant chemicals that may help ward off the cell damage that can lead to disease．Researchers have been studying green tea's effect on everything from cholesterol(胆固醇)to the risk of certain cancers，with mixed results so far．

For the new Japanese study，researchers decided to examine the question of whether green tea drinkers have a lower risk of frailty and disability as they grow older．

Tomata and his colleagues followed nearly 14，000 adults aged 65 or older for three years．

They found those who drank the most green tea were the least likely to develop “functional disability”，or problems with daily activities or basic needs，such as dressing or bathing．

Specifically，almost 13 percent of adults who drank less than a cup of green tea per day became functionally disabled，compared with just over 7 percent of people who drank at least five cups fl day．

The study did not prove that green tea alone kept people active as they grew older．

Green-tea lovers generally had healthier diets，including more fish，vegetables and fruit，as well as more education．lower smoking rates，fewer heart attacks and strokes，and greater mental sharpness．

They also tended to be more socially active and have more friends and family to rely on．

Although it's not clear how green tea might offer a buffer(缓冲剂)against disability，Tomata's team did note that one recent study found green tea extracts(提炼物)seem to increase leg muscle strength in older women．

While green tea and its extracts are considered safe in small amounts，they do contain caffeine and small amounts of vitamin K，which means it could block drugs that prevent blood thickened．

小题1:Which of the following can summarize the passage best?

A．Green tea makes you less active．

B．Green tea makes you less disabled．

C．Green tea makes you more friendly．

D．Green tea makes you more educated．小题2:The underlined word“ward off”in Paragraph 2 probably means     .

A．form

B．absorb

C．remove

D．prevent小题3:Tomata and his colleagues wanted to     .

A．prove whether the Japanese study is correct

B．know if green tea drinkers are independent

C．help nearly 14，000 adults aged 65 or older

D．study green tea's effect on cholesterol小题4:Which of the following is NOT the advantage of green tea?

A．Reduce functional disability．

B．Keep old people active．

C．Make more friends．

D．Suffer fewer heart attacks．小题5:It can be inferred from the last paragraph     .

A．green tea is safe to drink

B．green tea should be drunk properly

C．green tea is poisonous for old people

D．vitamin K is helpful to us

股市中常说的黄金交叉是指( )。

A．短期移动平均线向上突破长期移动平均线

B．长期移动平均线向上突破短期移动平均线

C．短期移动平均线向下突破长期移动平均线

D．长期移动平均线向下突破短期移动平均线

如走到视力表前距离多远仍不能识别0.1最大视标，则检查指数（）

A．5m

B．1m

C．0.5m

D．30cm

E．10cm