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【单选题】
某工厂的设备安装工程由某机电工程安装公司负责。由于施工现场光线较暗，不利于施工，于是施工单位依照规定程序向有关部门申请临时用电，并根据国家有关标准、规范和施工现场的实际负荷情况，编制《临时用电施工组织设计》，协助业主向当地电业部门申报用电方案，然后按照《中华人民共和国电力法》规定安装用电计量装置。用电时遵守《施工现场临时用电安全技术规范》和国家有关部门规定，施工过程中未出现用电安全问题，工程顺利进行 《施工现场临时用电安全技术规范》规定，临时用电工程应定期检查。其中施工现场应（ ）检查一次。A.
一月
B.
二月
C.
一季度
D.
半年
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【单选题】Which one is wrong about classification and regression?
A.
Regression analysis is a statistical methodology that is most often used for numeric prediction.
B.
We can construct classification models (functions) without some training examples.
C.
Classification predicts categorical (discrete, unordered) labels.
D.
R egression models predict continuous-valued functions.
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