What are the characteristics of a food chain? A: It is made up of 3 to 5 links. B: It begins with a green plant, belonging to the producer of ecosystem. C: Other links are usually predatory animals, belonging to the consumers of ecosystem D: The carrot, the corn and the trees are usually producers.

The speaker clicked more on his conservative friends ’ than on liberal friends’ links.

The<br/>biological chain in the agricultural ecosystem is generally composed<br/>of more than ten links.( )

“左边那个男孩是他的儿子。”用德语怎么表达？ A: Der Junge links ist sein Sohn. B: Der Junge links ist seine Sohn. C: Der Sohn links ist seine Junge. D: Der Sohn links ist sein Junge.

customs inspection procedures include: declare dispatched inspection、inspection instruction 、check、release、and so on five links.()

You can find information using Web-based ____. A: indexes B: lists of links C: links provided on the pages of wikis D: all of the above

What links the decisions of consumers and firms in a market?

The course (concentration）on creating links between theory and practice.

Links分为硬链接和符号链接。( )

16. A: posts B: links C: shades D: breaks