April to October, when the temperature is comfortable and _________ is less frequent.

When marginal cost is less than average cost,

The Gordon model ________ A: is a generalization of the perpetuity formula to cover the case of a growing perpetuity. B: is valid only when $g$ is less than $k$. C: is valid only when $k$ is less than $g$. D: is a generalization of the perpetuity formula to cover the case of a growing perpetuity and is valid only when $g$ is less than $k$. E: is a generalization of the perpetuity formula to cover the case of a growing perpetuity and is valid only when $k$ is less than $g$.

It tends to hurt less when just one friend changes.()

When water cools, but does not freeze, the molecules move ______________ and take up ______________ space. A: Faster, less B: Faster, more C: Slower, less D: Up, less

Naturalism is evolved from realism when the author’s tone in writing becomes less serious and less sympathetic but more ironic and more _____.

中国大学MOOC: Businesses are more willing to sell a product when the price _____ and less willing to sell it when prices _____.

Employees with fewer skills have always had less_____when it comes to negotiating pay and conditions.

I have........(less free time now than, so less free time now as) I had when I was in high school.

It hurts less when both friends change, because then the _____ is more often mutual.