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使用电钻、砂轮机注意事项是什么？

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MRI椎管内病变，静脉注入对比剂Gd-DTPA后，非占位性病变可为均匀或不均匀强化。

A. 正确
B. 错误

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下列行为中违反《廉政准则》规定的有（）

A. 某县张副县长给县财政局刘局长打电话，让其安排县财政局下属单位给自己进一台笔记本电脑
B. 某国家机关王主任收到其让同学代买的手机一部
C. 某私营企业经理董某向该企业员工索要高档香烟一条
D. 某国家机关李处长向其亲属借用住房一套

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A Windows Communication Foundation (WCF) service is generating a separate namespace declaration for each body member of a message contract,even though all body members share the same namespace. You need to simplify the XML representation of your message contract so that the namespace is only declared once. What should you do?（）

A. Declare a wrapper namespace for the message contract by using the WrapperNamespace property of the MessageContract attribute
B. Explicitly set the Namespace property of all the MessageBodyMember attrbutes to the same namespace.
C. Declare all of the body members as properties of a DataContract class and use the class as the only body member of the message contract.
Declare all of the body members as properties of a separate MessageContract class and use the class as the only body member of the message contract.

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临时停工地点，如果要停风，必须切断电源、设置栅栏、警标，禁止人员进入。

A. 正确
B. 错误

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