皮皮学，免费搜题
登录
搜题
【简答题】
假设某企业上半年的销售额与销售成本的有关资料如下表,对已知资料进行加工,计算用高低点法和回归直线法计算求出 A 、 B 值及线性模型公式。 期间 机器工时( X ) 维修成本( Y ) 1 30 340 2 20 250 3 52 560 4 35 380 5 40 430 6 25 280
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?
A.
excess amount of oily-water mixtures in bilges
B.
insulation of piping including exhaust pipes in engine room contaminated by oil
C.
improper operation of bilge pumping arrangements
D.
there were an actual emergency
【判断题】The chief officer and the second officer should be at present during the PSC inspection.
A.
正确
B.
错误
【单选题】During the PSC inspection, under the provision of SOLAS74, which one may not be regarded as clear grounds for ships' detainment?
A.
excess amount of oily-water mixtures in bilges
B.
insulation of piping including exhaust pipes in engine room contaminated by oil
C.
improper operation of bilge pumping arrangements
D.
paint peeling off the uptake
【单选题】During the PSC inspection,under the provisions of SOLAS 74,whichone may be regarded as clear groups for ship’s determine?
A.
failure of proper operation of propulsion
B.
paint peeling off the uptake
C.
no operation procedures of the oil separators
D.
damage sanitary pump
相关题目：