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    • Join Date: Oct 2004
    • Posts: 107
    #1

    reference questions...

    Hi,
    I need your help in 'reference'.

    1. Robert Zubrin says the rocketplane would take off and land at existing airports, making it much easier to use than space the space shuttle which has to glide onto special landing strips.

    2. Rocketplanes could carry a satellite above the atmosphere where it could be gently pushed into orbit, and then return to the airport to load another one.

    The anser sheets say that the first 'it' refers to 'the rocketplane', the second 'it' to 'rocketplanes'. But I think the first 'it' should refer to 'to use~~strips', the second 'it' to 'a satellite'.

    What do you think of them?

    Thanks in advance...

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    #2

    Re: reference questions...

    Hi nautes20


    1. Robert Zubrin says the rocketplane would take off and land at existing airports, making [the rocketplane] much easier to use than the space shuttle which has to glide onto special landing strips.
    Note, the rocketplane is being compared to the space shuttle, not to taking off and landing or to airports.
    2. Rocketplanes could carry a satellite above the atmosphere where [the rocketplane] could be gently pushed into orbit, and then return to the airport to load another one.
    Note, satellites cannot "return to the airport" or "load another [satellite]."

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