【多选题】不同线路运输成本差别较大,影响不同线路运输成本的因素主要包括( )。
【单选题】Animals, including insects, don't have a "language" like ours. They do not 'talk' to each other in words and sentences. But if we watch them, we can see that they do have their ways of communicating w...
A.
Animals have languages like human beings.
B.
Bees communicate with each other by dancing.
C.
Animals can use words.
【单选题】听力原文:W: Now, Mr. White, did you see the accident clearly? M: Oh, yes. I was standing outside the department store. W: Do you know what time it happened? M: Yes, it was 4:30 by my watch. W: Good, now, ...
C.
The traffic lights were red.
D.
A man was just crossing the street.
【简答题】Now fast food is very popular in China, especially with children. Kentucky Fried Chicken is their favourite. Anyone who goes to Kentucky Fried Chicken will certainly see a white-bearded old man standi...
【判断题】中药四气,也称四性,指药物寒热温凉四种药性。
【判断题】绝对优势理论是古典经济学家大卫·李嘉图提出的。()
【单选题】风险防范的理论依据是经济学家马科威茨于20世纪50年代创立的()