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【多选题】
根据《工程建设国家标准管理办法》，工程建设强制性标准是指直接涉及工程（ ）等方面的工程建设标准强制性条文。A.
市容市貌
B.
质量
C.
安全
D.
卫生
E.
环境保护
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反馈参考答案：
举一反三
【单选题】下列哪种表述是正确的 ?
A.
与短期债券相比 ， 长期债券的当期收 益率可以很好地近似到期收益率
B.
息票债券和贴现发行债券中 ， 价格和 利率的变化方向是相反的
C.
距离到期日越远 ， 利率同等幅度的变 动所引起的债券价格变动就越大
D.
息票债券发行后 ， 其息票利率就是固 定的
E.
上述表述都是正确的
【单选题】听力原文： Leonardo da Vinci was born in 1452 in Tuscany. As early as 1466, he was working in a workshop. Then in 1482 he moved to Milan. After the plague has swept the city of Milan in 1484～ 1485, he turn...
A.
25.
B.
30.
C.
35.
D.
40.
【单选题】What has happened to the children of working mothers?
A.
They are in government-supported day care centers.
B.
They are in private day care centers.
C.
Their grandmothers take care of them.
D.
They are sent to boarding school.
【单选题】Cold ______ the night air was, he slept soundly because he was so tired after working for a whole day.
A.
although
B.
while
C.
however
D.
as
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