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1 . The campaign, ________ (launch) on weibo, is soon joined by millions of netizens across China. (所给词的适当形式填空)
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2 . They tried to ________ (发起) a new project but failed. （根据汉语提示单词拼写）
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3 . The Jiuquan Satellite Launch Center, ________ the Gaofen 3C radar satellite was launched on April 7, 2022, lies in northwestern China’s Gobi Desert.
| A．from which | B．of which | C．to which | D．on which |
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