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【单选题】
在一般钢筋混凝土结构中大量应用的是热轧钢筋,下列何者抗拉强度最大?A.
3号钢
B.
40硅2锰矾
C.
20锰硅
D.
25锰硅
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【单选题】According to an analysis, compared with normal children today, children treated as mentally ill 50 years ago ______.
A.
were less isolated physically
B.
were probably less self-centered
C.
probably suffered less from anxiety
D.
were considered less individualistic
【简答题】背景资料 某机电安装公司承担了某钢厂新厂区油罐组焊、燃气和氧气管道安装施工，设计要求焊缝进行射线无损探伤检查。强度试验采用气压试验方法。 该公司在编制施工方案时，对油罐组焊、管道焊接方案采用综合评价法进行了技术经济比较，选定了最优方案。 管道焊后经射线探伤发现，焊接合格率偏低。项目部组织人员按质量预控的施工因素进行了分析，经查验，工艺文件已按程序审批，并进行了技术交底。但焊接记录中有部分焊材代用，...
【单选题】It is our children and our childrens children who______pay for the mistakes we make today.
A.
will have to
B.
must
C.
should
D.
are able to
【单选题】According to an analysis, compared with normal children today, children treated as matt, ally ill 50 years ago ______
A.
were less isolated physically
B.
were probably less self-centered
C.
probably suffered less from anxiety
D.
were considered less individualistic
【单选题】According to an analysis, compared with normal children today, children treated as mentally ill 0 years ago ______.
A.
were less isolated physically
B.
were probably less self-centered
C.
probably suffered less from anxiety
D.
were considered less individualistic
【单选题】新生儿期是指
A.
从出生后脐带结扎开始到整28天
B.
从出生后脐带结扎开始到整30天
C.
从出生后脐带结扎开始到整1个月
D.
从胎儿娩出到整28天
E.
从胎儿娩出到整1个月
【单选题】According to the analysis, compared with normal children today, children treated for mental illness 50 years ago______.
A.
were less isolated physically
B.
were probably less self-centered
C.
probably suffered less from anxiety
D.
were considered less individualistic
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