听力原文:Compared to a meat-centered diet, meatless meals can easily supply all the essential nutrients our body requires, and cost only 20% to 30% as much. (30)
A.
A diet with meat only is not enough for our body.
B.
A diet with vegetables can sometimes be very costly.
C.
Meatless meals are equally nutritious and less expensive.
D.
Meatless meals cannot provide all the essential nutrients.