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that we can’t get the necessary equipme...

        that we can’t get the necessary equipment , we will have to give up the experiment.

   A. If             B. Supposed           C. Provide            D. Assuming

 

D 【解析】考察连词,if 如果,跟从句,不能跟that引导的句子 ,B应为suppose或者supposing,意为,假如  C 应为provided that, assuming 假如 句意为,假如我们不能得到需要的设备,我们将不得不放弃这个实验。
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