A communicative satellite ______ as much as 3.5 tons was sent up into space last week.
| A．weighing | B．weighed |
| C．to be weighed | D．being weighed |
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A communicative satellite ______ as much as 3.5 tons was sent up into space last week.
| A．weighing | B．weighed |
| C．to be weighed | D．being weighed |
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