Nowadays searching information on the Internet is a piece of cake. The __________ is how you can tell if the information you get is beneficial or not.
| A．characteristic |
| B．competition |
| C．challenge |
| D．confusion |
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Nowadays searching information on the Internet is a piece of cake. The __________ is how you can tell if the information you get is beneficial or not.
| A．characteristic |
| B．competition |
| C．challenge |
| D．confusion |
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