A、下降
B、遗传
C、突袭
D、突然访问
A、对
B、错
A、80% of the people were left without power.
B、People had to walk.
C、There were no phone service, no computers, no cellphones.
D、People had no food to eat.
A、coal
B、nuclear
C、natural gas
D、oil
A、对
B、错
A、远非不可能
B、非常不可能
C、不可能
D、有一点可能
A、对
B、错
A、错
B、对
A、It can’t provide enough energy for the whole country.
B、It doesn’t need to dig, drill or pipe in.
C、It doesn’t come cheap.
D、It needs millions of cows to make sufficient electricity.
A、对
B、错