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[求助]请教两个表达问题
这个句子:natural gas is the United States second biggest fuel source and supplied almost exclusively from reserves in North America.对不对??这里的supplied前的is是不是一定要补出来???
63.After July, anyone disposing of or servicing refrigerators must capture the chlorofluorocarbons in the refrigerant chemicals. (A) anyone disposing of or servicing (D) the disposal or repair of
答案是A,请教 1。D哪里错? 2。单看表达:the disposal or repair of这样的表达可行吗??是不是应该改为the disposal of or the repair of???
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