食品污染根据污染物的性质可分为(),()和()3大类。
参考答案:生物性污染、化学性污染、放射性污染
__ is going to see the film Titanic again because this year marks the 100 years since the Titanic sank(沉没) in the ocean.
A.Not only Lily but also her parents
B.Lily as well as Lucy
C.Both Ben and Diana
D.Neither Ben nor Diana
补全对话。
A=TonyB=Lingling
A:What did you do yesterday?
B:I went to listen to a 1 about animals in 2.
A:It sounds very 3.
B:Yes.Do you know the Wolong Panda 4?
A:Of course I know.What's wrong?
B:The 5 thing is to hear 6 7 animals are in danger all over the world.
A:It's 8 to think about that.
B:We 9 to 10 our tigers,turtles and snakes.
A:Yes,you are right.