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办理车票改签或“变更到站”时，新车票票价低于原车票的，退还差额，对差额部分核收退票费并执行现行退票费标准。A.
正确
B.
错误
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【单选题】Many people believe the glare from snow causes snow blindness. Yet, dark glasses or not they find themselves suffering from headaches and watering eyes, and even snowblindness, when exposed to several...
A.
tears cover the eyeballs
B.
the eyes are annoyed by blinding sunlight
C.
the eyes are annoyed by blinding snow
D.
there is nothing to focus on
【简答题】The British usually expect one or two snowfalls each year but the amount of snow rarely affects everyday life. However, this week Britain has had the worst snow it has seen in around 18 years. Some pl...
【简答题】简述园林树木通过什么途径美化环境?
【单选题】Why are the Dry Valleys left bare?
A.
Vicious wind blasts the snow away.
B.
It rarely snows.
C.
Because of the global warming trend and fierce wind.
D.
Sand dunes.
【简答题】[rɪˈfrɪdʒəreɪtə] ________________
【简答题】（题干）女，47岁，发现右侧乳房内无痛性肿块2个月。体检：右侧乳房外上象限可扪及一直径约为4cm的肿块，表现不甚光滑，边界不清，质地硬;局部乳房皮肤凹陷呈“酒窝征”;同侧腋窝可扪及2个肿大的淋巴结，可被推动。经活组织病理学检查证实为乳癌，拟行乳癌改良根病术。 乳癌根治术后，预防皮下积液的主要措施是A.半卧位 B.高蛋白饮食 C.患肢制动 D.切口用沙袋迫 E.皮瓣下置管引流 若该病人为乳房癌根治术...
【单选题】Ice and snow are creating a fairytale scene in Harbin, the 'Ice City', the 27th International Ice and Snow Festival, has just opened to the public. [ ]
A.
which
B.
about which
C.
where
D.
that
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