咸味最佳感觉范围是在食盐含量（）。-刷刷题APP

【判断题】钢的质量是以磷、硫的含量来划分的

A.

正确

B.

错误

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【单选题】最佳修复方案是

A.

直接改为活动义齿修复

B.

采用种植固定义齿修复

C.

全冠修复基牙后再改为活动义齿修复

D.

增加前端基牙数再行固定修复

E.

增加前端基牙数目再行固定活动联合修复

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【单选题】优质钢中S、P的含量是（）。

A.

ωs≤0.050%，ωp≤0.045%

B.

ωs、ωp≤0.035%

C.

ωs、ωp≤0.03%

D.

ωs、ωp≤0.025%

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【单选题】Long after the 1998 World Cup was won, disappointed fans were still cursing the disputed refereeing (裁判) decisions that denied victory to their team. A researcher was appointed to study the performanc...

A.

The ideal retirement age for an experienced football referee is 35.

B.

Age should not be the chief consideration in choosing a football referee.

C.

A football referee should be as young and energetic as possible.

D.

An experienced football referee can do well even when in poor physical condition.

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【单选题】下列与煤层瓦斯含量无关。（）

A.

采掘技术条件

B.

煤层的埋藏深度

C.

地质构造

D.

水文地质条件

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【简答题】[名词解释] 生物最佳粒径

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【多选题】下面属于保税港区业务范围的是( )。

A.

对外贸易，包括国际转口贸易

B.

研发、加工、制造

C.

存储进出口货物和其他未办结海关手续的货物

D.

检测和售后服务维修

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【单选题】样本含量估计

A.

根据实际情况能选多少是多少

B.

经济条件允许的情况下越多越好

C.

时间允许的情况下越多越好

D.

调查整个总体最好

E.

保证研究结论具有一定可靠性的前提下确定的最小例数

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【判断题】由于狄铸铁中碳和杂质元素含量高，所以力学性能特点是硬而脆。

A.

正确

B.

错误

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【单选题】Long after the 1998 World Cup was won, disappointed fans were still cursing the disputed refereeing(裁判) decisions that denied victory to their team. A researcher was appointed to study the performance...

A.

slightly above average

B.

higher than in the 1998 World Cup

C.

quite unexpected

D.

as high as in a standard match

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