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【简答题】
塑性指数是反映粘性土中粘粒和胶粒含量的一个重要指标，塑性指数大的粘性土，表明土中粘粒和胶粒少。
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皮皮学刷刷变学霸
举一反三
【单选题】representative/ repri’zentətiv/
A.
n.考虑,思考;体贴
B.
a.规则的;整齐的
C.
a.代表性的 n.代表
D.
vt.建造;建设;构筑
【单选题】conservative/ kən’sə:vətiv/
A.
a.保守的 n.保守的人
B.
n.关心,挂念;关系
C.
n.运输工具;运载工具
D.
n.轻蔑;藐视;受辱
【单选题】alternative / ɔ:l’tə:nətiv/
A.
a.每年的 n.年报
B.
a.醒着的 vt.唤醒
C.
n.替换物;取舍,抉择
D.
vi.争论,争辩,辩论
【简答题】[ ɔ :l ˈ t ə :n ə tiv]
【单选题】The most accurate method of determining gyrocompass error while underway is by ______．
A.
Comparing the gyro azimuth of a celestial body with the computed azimuth of the body
B.
Comparing the gyro heading with the magnetic compass heading
C.
Determining from the chart the course made good between celestial fixes
D.
It cannot be determined accurately at sea due to drift of unknown currents
【单选题】While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?
A.
Manually trip the over-speed device
B.
Interrupt the fuel flow to the engine
C.
Disengage the safety interlock
D.
Slide the camshaft to the neutral position
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