依照公务员法属综合管理类的非领导职务有哪些?(干部人事管理岗位)
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对装过性质特殊、缺乏有效洗刷除污手段的货车,洗刷所应通知卸车站,要求()提供有效的洗刷除污方法和药物,再次洗刷处理。
自然通风气流下降式烤房通风排湿即打开()
A. 天窗
B. 风机
C. 炉门
D. 进风洞和排湿管
You are developing a custom-collection class.You need to create a method in your class. You need to ensure that the method you create in your class returns a type that is compatible with the Foreach statement. Which criterion should the method meet?()
A. The method must return a type of either IEnumerator or IEnumerable.
B. The method must return a type of IComparable.
C. The method must explicitly contain a collection.
D. The method must be the only iterator in the class.