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【单选题】

Road courtesy is not only good manners, but good sense, too. It takes the most level-headed and good-tempered of drivers to resist the temptation to get their revenge when subjected to uncivilized behavior. On the other hand, a little courtesy goes a long way towards relieving the tensions and frustrations of motoring. A friendly nod or a wave of acknowledgement in response to an act of courtesy helps to create an atmosphere of good will and tolerance so necessary in modern traffic conditions. But such acknowledgements of courtesy are all too rare today. Many drivers nowadays don’t even seem able to recognize courtesy when they see it.
Contrary to general opinion, young drivers (especially sports-car owners, who take pride in their driving) have better manners than their seniors. But this attitude is short-lived in the world of modern driving where many drivers neither expect nor give any quarter. This may be a commendable trait on the battlefield but is out of place on the roads.
Lorry drivers say they have almost abandoned the practice of signaling cars to overtake when the road is clear, because many of the cars took too long to pass. Their drivers couldn’t be bothered to select a lower gear. Others, after overtaking, slowed down again and hogged (多占) the road. Again, a motoring magazine has recently drawn attention to the increasing number of drivers who never wait for gaps. "They manufacture them by force, using their direction indicators as a threat rather than a warning." Slanging-matches (互相谩骂)and even punch-ups are quite common. It can’t be long before we hear of pistols and knives being used: we can then call our dual carriageways duel carriageways, and solve a spelling problem in the process.
Driving is essentially a state of mind. However technically skilled a driver may be, he can’t be an advanced motorist if he is always arrogant and aggressive.
Ironically, misplaced courtesy can also be erous and selfish. Typical examples are the driver who brakes violently to allow a lone car to emerge from a side street at some hazard to following traffic, when a few seconds later the road would be clear anyway; or the man who waves a child across a pedestrian crossing into the path of oncoming vehicles that may be unable to stop in time. The same goes for encouraging old ladies to cross the road wherever and whenever they care to. It always amazes me that the highways are not littered with the corpses of these grannies.
An example of misplaced manners on the roads is ______.

A.
slowing down to let a kid pass
B.
stopping suddenly at pedestrian crossings
C.
turning up side streets without giving signals
D.
unnecessarily giving way to other cars without warning those behind you
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参考解析:
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举一反三

【单选题】流行性乙型脑炎

A.
病灶内髓鞘崩解脱失、轴索破坏
B.
出现富含脂肪的格子细胞
C.
两者均有
D.
两者均无

【单选题】The most important step in developing an effective campaign, and the step which must come before all others, is to define the objectives of the campaign with greatest possible clarity. Does the compan...

A.
one objective will confuse the selected audience
B.
a get of objectives will help to attract new employees
C.
one objective will make the selected audience know what to do
D.
a set of objectives will help the selected audience know more about the campaign

【单选题】HIV gag基因

A.
外壳蛋白
B.
增强致病力
C.
两者均是
D.
两者均非

【单选题】Skin Cancer Skin Cancer58() A.allocate B.associate C.contribute D.attribute

A.
Melanoma (黑素瘤), the deadliest kind of skin cancer, is now the most common cancer in (51) British women, the country’s leading cancer organization said Wednesday. Skin cancer has (52) cervical (子宫颈的) cancer as the top cancer striking women in their 20s, according to the latest data from Cancer Research United Kingdom.
B.
The trend is particularly (53) since younger people are not generally those most susceptible (易患的) to melanoma. Rates of skin cancer are (54) highest in people over age 75.
C.
But experts worry that increasing numbers of younger people being diagnosed with skin cancer could be the (55) of a dangerous trend. Women in their 20s make (56) a small percentage of all patients diagnosed with melanoma in Britain, but nearly a third of all cases occur in people younger than 50.
D.
Based on current numbers, Cancer Research UK predicts that melanoma will become the fourth (57) common cancer for men and women of all ages by 2024, and that cases will jump from about 9,000 cases a year to more than 15,500.
E.
Cancer experts (58) the rising number of skin cancer cases largely to the surge in people using tanning salons. "Spending time on sun beds is just as (59) as staying out too long in the sun," said Caroline Cerny of Cancer Research UK. The organization is starting a SunSmart (60) to warn Britons of the dangers of being too bronzed.
F.
"The intensity of ultraviolet rays in some sun beds can be more than 10 (61) stronger than the midday sun," Cerny said.
G.
In the United States, several states require parental approval (62) minors can use tanning salons. Wisconsin bans people 16 and (63) from using tanning beds, and others ban children under 14. At least 29 states have regulations governing minors’ use of tanning salons.
H.
In the U. K. , Scottish politicians passed legislation banning those under 18 from using tanning beds, though it hasn’t yet been implemented. There are no plans for (64) in the rest of the U. K.
I.
The World Health Organization has previously recommended that tanning beds be regulated because of their potential to damage DNA in the skin.
J.
Experts said most deadly skin cancers could be (65) if people took the proper precautions when in the sun and avoided tanning beds.

【单选题】I like watching TV () to the cinema.

A.
more than to go
B.
than going
C.
rather than to go
D.
more than going

【单选题】符合MDS的是

A.
血非结合胆红素增高、贫血、网织红细胞增高
B.
血非结合胆红素增高、贫血、网织红细胞正常或减低
C.
血非结合胆红素增高、无贫血、网织红细胞正常
D.
血非结合胆红素正常、贫血、网织红细胞减低
E.
血非结合胆红素正常、贫血、网织红细胞正常

【多选题】内部不均衡与外部不均衡的组合的情形包括( )。

A.
经济衰退、失业与国际收支逆差
B.
经济衰退、失业与国际收支顺差
C.
通货膨胀与国际收支逆差
D.
通货膨胀与国际收支顺差
E.
内部均衡与外部不均衡