单项选择题

A．It served as a fertilizer for crops.
B．It formed a new mountain.
C．It stabilized air temperatures.
D．It destroyed various insect pests.
<上一题 目录 下一题>
热门 试题

单项选择题
A．She didn’t go to work this morning.B．She was injured and had to go to the hospitalC．She talked with the boss in the morning.D．The traffic delayed her.
A．She didn’t go to work this morning.
B．She was injured and had to go to the hospital
C．She talked with the boss in the morning.
D．The traffic delayed her.
单项选择题
A．They lived a luxurious life and their diet was very delicate.B．They lived a highly civilized court life.C．They lived a primitive li[e and their table manner was often rude.D．They lived a Comparatively luxurious but not-so-civilized life.
A．They lived a luxurious life and their diet was very delicate.
B．They lived a highly civilized court life.
C．They lived a primitive li[e and their table manner was often rude.
D．They lived a Comparatively luxurious but not-so-civilized life.
相关试题