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【多选题】
通过砂料颗粒级配筛分试验，可以取得砂的下列参数和类别。()A.
砂的细度模数
B.
砂料的粗、中、细分类
C.
砂料的平均粒径
D.
砂料的表观密度
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反馈参考答案：
举一反三
【单选题】支气管哮喘与喘息型慢性支气管炎的鉴别最有价值的是
A.
肺气肿体征
B.
两肺普遍哮鸣音
C.
对支气管解痉剂的反应
D.
长期咳嗽,咳痰,喘息病史
E.
呼气期带喘鸣的呼吸困难
【单选题】The first group of the Celts came to the land were ______.
A.
The Angles
B.
The Britons
C.
The Gaels
D.
The Gauls
【单选题】The Celts were different groups of ancient people who came originally from ______.
A.
Spain
B.
Britain
C.
Germany
D.
France
【单选题】The Celts came to Britain in three main waves, and the were the most industrious and vigorous of the Celtic tribes.
A.
Gaels
B.
Britons
C.
Belgaes
D.
Celts
【单选题】Celts were different groups of ancient people who came originally from___ .
A.
France
B.
Denmark
C.
Ireland
D.
Germany
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