对于两级压缩制冷系统，当冷凝温度保挣匾定而蒸发温度升高时，高压级的压缩比和低压级的压缩比将会（）。
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焚烧处理垃圾可以使垃圾的体积减少（）。
A. 50％～60％
B. 70％～75％
C. 80％～85％
D. 85％～95％
Your vessel was damaged and initially assumed a significant list and trim; however，further increase has been slow. Based on this data，what should you expect?（）
A. The slowing is only temporary and the vessel will probably suddenly capsize or plunge from loss of stability due to change in the waterplane area
B. The vessel can probably be saved if further flooding can be stopped
C. The vessel will continue to slowly list and/or trim due to the free surface effect and free communication effect
D. The vessel will suddenly flop to the same or greater angle of list on the other side and may capsize
重商主义分为早期的重商主义和晚期的重商主义，即（）和（），二者均认为（）是财富的唯一形态，除了开采金银矿藏外，只有（）才能够增加一国的财富数量。
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