下列哪一些指标是成本-效用分析法收益计量采用的合成指标()
A. 质量生命调整年
B. 生活质量调整年(QALY)
C. 残疾调整生命年(DALY)
D. 死亡率
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()meanschecktheswingofthevessel’sheadinaturn.
A. Steady
B. Meether
C. Midships
D. Stopengines
()meansruddertobeheldintheforceandaftangles.
A. Steady
B. Meether
C. Midships
D. Stopengines
()isusedformeasuringhorizontalandverticalangles.
A. Themarinesextant
B. Thechronometer
C. Themagneticcompass
D. Thegyrocompass
()isthenavigationaltimekeeperofthevessel.
A. Themarinesextant
B. Thechronometer
C. Themagneticcompass
D. Thegyrocompass