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【单选题】
收益法适用的条件是房地产的（ ）。A.
收益能够准确预测
B.
风险能够准确预测
C.
收益或风险其一可以准确预测
D.
收益和风险都能够准确预测
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举一反三
【单选题】The two birds ________ each other in shape and color, in other words, they ________ each other in shape and color. [ ]
A.
differ; are different from
B.
differ from; are different with
C.
resemble; are similar to
D.
resemble; are similar with
【单选题】In an open lifeboat，the lifeboat compass is usually（）.
A.
placed in a fixed bracket when being used
B.
clamped to any position convenient for the coxswain to see it
C.
permanently mounted on the lifeboat's centerline
D.
mounted in the center of the boat to eliminate deviation
【单选题】Each lifeboat must be lowered and maneuvered in the water at least once every（）.
A.
2 months
B.
3 months
C.
4 months
D.
5 months
【简答题】根据液压泵与执行元件的组合方式不同,容积调速回路有四种形式,即( )容积调速回路( )容积调速回路、 定量泵-变量马达 容积调速回路、 变量泵-变量马达 容积调速回路。
【单选题】Each open lifeboat carried on a vessel on an international voyage must have（）.
A.
hand-propelling gear
B.
a davit span with at least 2 lifelines
C.
a mast and a sail
D.
a motor
【简答题】根据液压泵与执行元件的组合方式不同,容积调速回路有四种形式,即 变量泵-液压缸 容积调速回路 变量泵-定量马达 容积调速回路、( )容积调速回路、( )容积调速回路。
【单选题】某带权有向图如图3-67所示。 若忽略边上的权，并将其看做AOV网，那么该AOV网的拓扑排序为(1)。若将该图视为AOE网，那么该AOE网的关键路径有(2)条，其长度为(3)。该AOE网的所有关键活动共有(4)个，V5的最早开始时间和最迟开始时间分别是(5)。
A.
V1、V2、V3、V4、V6、V5、V7、V8
B.
V1、V3、V5、V2、V4、V6、V7、V8
C.
V1、V2、V3、V4、V5、V6、V7、V8
D.
V1、V2、V3、V5、V6、V4、V7、V8
【简答题】什么是关键活动AOV网?
【单选题】Frapping lines are fitted to lifeboat davits to ______.
A.
secure the lifeboat in the davits when in the stowed position
B.
bring the life boat close along the rail in the embarkation position
C.
give the occupants a safety line when the boat is being lowered from the embarkation level
D.
reduce the swinging of the lifeboat at the embarkation level
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