单项选择题

Passage Two
Questions 30 to 32 are based on the passage you have just heard.

A．To forbid grazing on marginal lands.
B．To plant more trees on marginal lands.
C．To establish good ground cover.
D．To graze animals rotationally.
<上一题 目录 下一题>
热门 试题

单项选择题
The achievements for HIV vaccine has been given discount because ______.
A．it causes a number of questions to answer
B．it can’t effectively protect people from HIV
C．it can’t be recognized by the people
D．it is proved ineffective in treating HIV
单项选择题
A．To honor women pioneers.B．To encourage the students to pursue their dreams.C．To honor the September 11 attack.D．To make more heroes.
A．To honor women pioneers.
B．To encourage the students to pursue their dreams.
C．To honor the September 11 attack.
D．To make more heroes.
相关试题