题目内容

Quick sand is a

A. type of sand
B. flow condition occurring in cohesive soils
C. flow condition occurring in cohesionless soils
D. flow condition occurring in both cohesive and cohesionless soils

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The water content of soil, which represents the boundary between plastic state and liquid state, is known as

A. liquid limit
B. plastic limit
C. shrinkage limit
D. plasticity index

供给曲线与需求曲线的交点即是市场均衡点。

A. 对
B. 错

当市场价格低于均衡价格时，商品的需求小于供给。

A. 对
B. 错

当市场价格高于或者低于均衡价格时，市场机制（看不见的手）会使价格、供给和需求回到均衡状态。

A. 对
B. 错