题文
-- Finding information in today’s world is easy.
-- That’s right. The ____ is how you can tell if the information you get is useful.
| A．ability | B．competition |
| C．challenge | D．Knowledge |
-- Finding information in today’s world is easy.
-- That’s right. The ____ is how you can tell if the information you get is useful.
| A．ability | B．competition |
| C．challenge | D．Knowledge |
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