与钻探有关的岩石物理性质有哪些？
参考答案：
主要有岩石的密度、孔隙度、含水量、透水性、稳定性等物理性质。
Company ABC adopt year-summary for decritiation of asset. They spent $17000 purchased one computer. It is eatimated that the computer can be sold with $2000 three years later. Thus, how much will be the asset decritiation of this computer in year three
A) $5000. B) $4500. C) $7500. D) $2500.
承担职业病诊断的医疗卫生机构应当具备下列（）条件。
A.持有《医疗机构执业许可证》
B.具有与幵展职业病诊断相适应的医疗卫生技术人员
C.具有与开展职业病诊断相适应的仪器、设备
D.具有健全的职业病诊断质量管理制度
E.持有安全许可证
