For the permanent ramp haulage system, the side of slope with haulage ramp is permanent, and another side is a working slope.

Once you start to lie, you are __________. ( ). A: on a slippery slope B: failing C: to a slippery slope D: on a slope

I got the news that they ___________(plant ) a lot of trees on the slope.

The ball ____ two or three times before rolling down the slope.

For a horizontal demand curve, A: the slope is undefined, and the price elasticity of demand is equal to 0. B: the slope is equal to 0, and the price elasticity of demand is undefined. C: both the slope and price elasticity of demand are undefined. D: both the slope and price elasticity of demand are equal to 0.

When your income increases, A: your budget line shifts rightward and its slope does not change. B: your budget line shifts leftward and its slope does not change. C: the slope of your budget line increases. D: the slope of your budget line decreases.

The mountain slope is ___________. 　　[1分]

The horizontal or near horizontal part of a step is called( ). A: Slope B: Slope angle C: Working face D: Flat plate

A logical fallacy of faulty generalization by reaching an inductive generalization based on insufficient evidence, this is the fallacy of Slippery Slope.

If the coefficient of determination is 0.975, then the slope of the regression line: