【单选题】【消耗次数：1】
在培训实践存在的基本问题中，培训体系因素包含（）大因素。
①
6
②
7
③
8
④
9
参考答案：
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相关题目
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感染防控培训目前存在的问题是（ ）
①
为了培训而培训
②
理论知识的堆积，枯燥乏味，缺少实践
③
一个培训课件用到底
④
培训对象未分类，对所有人要求都一样
⑤
以上都是
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工业上获取丁二烯的主要方法有：从烃类裂解制乙烯的联产物碳四馏分分离得到、由丁烷或丁烯催化脱氢法制取和( )氧化脱氢法制取三种。
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二丁烯
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乙烯
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mso-ascii-theme-font:minor-latin;mso-fareast-theme-font:minor-fareast;
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Times New Roman
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
ZH-CN;mso-bidi-language:AR-SA;mso-bidi-font-weight:bold">画局部视图时，应在基本视图上标注出
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投射方向
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名称
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投射方向和相应字母
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不标注
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化工制图中图线宽度分粗、中粗、细三种，若粗实线的宽度为d，则细实线的宽度为( )。
①
Normal
0
7.8 磅
0
2
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false
false
EN-US
ZH-CN
X-NONE
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2d
②
Normal
0
7.8 磅
0
2
false
false
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ZH-CN
X-NONE
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mso-bidi-font-size:11.0pt;
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mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:等线;
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d
③
Normal
0
7.8 磅
0
2
false
false
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ZH-CN
X-NONE
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{mso-style-name:普通表格;
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④
Normal
0
7.8 磅
0
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