問題詳情

18. The safety problem with its latest cell phone battery is the _______ issue the company has ever faced.
(A) most serious
(B) more serious
(C) seriousness
(D) serious

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增

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X(A)物質X匱乏時，冰棒即是美食☆ →...