题文
“They are required to keep a twometer________from everyone else during the quarantine (隔离)period，” experts say.
| A．length |
| B．width |
| C．distance |
| D．space |
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“They are required to keep a twometer________from everyone else during the quarantine (隔离)period，” experts say.
| A．length |
| B．width |
| C．distance |
| D．space |
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