This structure is ____ than the other three.

A．Jogging is better than the other types of exercise.

B．Heart disease is no longer an American national problem.

C．Jogging can be harmful if the runner is not properly prepared.

D．Warm-up suits are better than gym shorts and T-shirts for joggers.

A．They had a better time than the other guests of the party.

B．They didn't enjoy the party because they didn't like the food and drinks provided by the hostess.

C．They enjoyed the party very much because the hostess was very friendly.

D．They didn't enjoy the party very much because they didn't know the other guests.

Which die is different from the other three?

A．

B．

C．

D．

We learn from the passage that a demand for theorists by society is______than that for society by theorists.

The food is insufficient for three people.

The food is insufficient for three people.

The food is insufficient for three people.

Which of the following abbreviations is NOT so associated with the U.S. as the other three?

A．MIT

B．NBA

C．VOA

D．CBA