微分方程(y``)4+(y`)5+y`+2=0的阶数是( ) -题库考试答案搜索网

微分方程(y``)⁴+(y`)⁵+y`+2=0的阶数是( )

单选题

2021-07-17 23:32

A、一阶
B、二阶
C、三阶
D、四阶

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正确答案

B

试题解析

标签：地质学专升本高数（2） 2020级第一学期期末考试期末考试城乡规划安全工程环境工程计算机网络技术高起专道路桥梁与渡河工程期末补考道路桥梁工程技术

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我们每学期进行的期中考试、期末考试是水平测试（Proficiency Test）。

（）shall be liable for loss of and damage to the Vessel and／or goods arising or resulting from inaccuracies in stating the description，quantity，weight，measurement or contents.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

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