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【单选题】
关于度的定义,以下答案最佳的是()A.
事物的质量和数量的极限
B.
事物保持其数量稳定性的界限
C.
事物保持其本在规定性的数量界限
D.
事物发生变化的临界点
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反馈参考答案：
举一反三
【简答题】请计算,整流滤波电路中,估算的输入与输出电压之间的比值。
【单选题】【单选】What is the main purpose of dunnage?
A.
To act as ballast for light vessels
B.
To provide ventilation and drainage for cargo
C.
To secure the tarpaulins in place
D.
To support weakened bulkheads
【单选题】S1:Have you laid the dunnage as instructed?S2:I think so.S1:What have you done with the bilges?S2:The bilges have been covered with planks.S1:Where did you find the dunnage planks? The planks you use ...
A.
It should be laid with one layer of dunnage.
B.
It should be laid with two layer of dunnage.
C.
It should be laid with one layer of mats.
D.
It should be laid with two layer of dunnage.
【简答题】习题2.doc
【单选题】What is the main purpose of dunnage?
A.
to act as ballast for light vessels
B.
to provide ventilation and drainage for cargo
C.
to secure the tarpaulins in place
D.
to support weakened bulkhead
【单选题】What is the main purpose of dunnage? ___ .
A.
To act as ballast for light vessels
B.
To provide ventilation and drainage for cargo
C.
To secure the tarpaulins in place
D.
To support weakened bulkheads
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