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【单选题】
焊接时,焊接电流太小、焊条角度不当会产生 ▲ 缺陷。A.
夹渣
B.
未焊透
C.
气孔
D.
焊接裂纹
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反馈参考答案：
举一反三
【简答题】植物吸水与吸盐的关系既()又()
【单选题】How can a professor evaluate a student's capability of implementing the research?
A.
By concentrating on the main factors like the purpose, background, procedures and discussion.
B.
By emphasizing the practical implications and recommendations of the research.
C.
By focusing on the detailed description of the process of the research such as the tools, procedures, the process of data analysis, the results, and conclusions etc.
D.
By noticing the detailed method used to collect the data, the construction of the data collection procedures, the techniques for analyzing the date and results etc.
【简答题】植物吸水与吸盐的关系是,既( ),又( )
【单选题】How many were in favor of the treaty?
A.
More than 67%.
B.
More than 53%.
C.
More than 76%.
D.
More than 46%.
【多选题】以下选项哪些能作为划分自动喷水灭火系统设置场所火灾危险等级的依据( )。
A.
由可燃物的性质、数量及分布状况等确定的火灾荷载
B.
由面积、高度及构筑物构造等情况体现的室内空间条件
C.
由气温、日照及降水等气候因素反映的环境条件
D.
由人员疏散难易、消防队增援等决定的外部条件
【单选题】How can a professor evaluate a student's capability of implementing the research?
A.
By concentrating on the main factors like the purpose, background, procedures and discussion.
B.
By emphasizing the practical implications and recommendations of the research.
C.
By focusing on the detailed description of the process of the research such as the tools, procedures, the process of data analysis, the results, conclusions, etc.
D.
By noticing the detailed method used to collect the data, the construction of the data collection procedures, the techniques for analyzing the date and results, etc.
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