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【单选题】
下列选项中,说明了稀缺性A.
某些国家总是在生产可能性边界之内进行生产
B.
尽管资源是有限的，但是资源浪费大量存在
C.
资源的数量总是能保证生产出足够多的产品
D.
资源有有限的，而欲望却是无限的
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【单选题】女性，44岁。反复发作腹泻3年，每于受冷、饮食不当或疲劳后发作，大便果酱色，每日4～5次，时有血相混，便时腹痛，便后缓解，大便量多。纤维结肠镜检距肛门8cm处有口小底大、边缘清楚的溃疡多个，表面有渗血。假如病人为脓血便，伴里急后重感，纤维结肠镜检示直肠及乙状结肠黏膜充血、水肿、质脆易出血，并有散在分布、大小不等溃疡和小息肉多个，多次大便培养阴性，最可能的诊断是（）
A.
慢性溃疡性结肠炎
B.
阿米巴肠病
C.
慢性细菌性痢疾
D.
日本血吸虫病
E.
溃疡性结肠癌
【单选题】听力原文： In Bangladesh, the opposition Awami League has returned to parliament after a year-long boycott. Bangladesh's main opposition party, the Awami League walked out of parliament 13 months ago, comp...
A.
prevent against electoral scandals.
B.
push through electoral reform. proposals.
C.
defeat the ruling party and come into power.
D.
participate in parliamentaly debates.
【单选题】听力原文：In Bangladesh, the opposition Awami League has returned to parliament 'after a year-long boycott. Bangladesh's main opposition party, the Awami League walked out of parliament 13 months ago, comp...
A.
prevent against electoral scandals.
B.
push through electoral reform. proposals.
C.
defeat the ruling party and come into power.
D.
participate in parliamentary debates.
【单选题】Q6
A.
It is the most profitable company of its kind in America.
B.
It only recruits attractive college students as employees.
C.
It has franchises in almost every state in America.
D.
It is an environmentally friendly and socially responsible company.
【单选题】Q6
A.
Their work can only be used as a model.
B.
Most of their writers are poorly paid.
C.
Most writers have doctorate degrees.
D.
Students may handle the paper as they wish.
【单选题】Q6
A.
Going to the high street
B.
Visiting everyday shops
C.
Visiting shops and buying online
D.
Buying things like electrical goods
【单选题】Q6
A.
Because she wanted to accomplish what her son died too soon to do himself.
B.
Because she wanted to take on her son's commitment to rescuing people on a large basis.
C.
Because she lived with the people in poverty.
D.
Both A) and B).
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