题文
【2015·江苏】The number of smokers, _____ is reported, has dropped by 17 percent in just one year.
| A．it | B．which | C．what | D．as |
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【2015·江苏】The number of smokers, _____ is reported, has dropped by 17 percent in just one year.
| A．it | B．which | C．what | D．as |
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