题目内容

What the public is          about is whether medical workers and scientists will be able to find a cure for the new disease in a short time.
A．concerningB．concernC．concernedD．to concern
C

试题分析：考查非谓语动词。sb be concerned about关心/关注...。句意：公众关心的是医疗工作者和科学家能否在短时间内发现治疗这种新型疾病的药物。concerning是介词，意为“关于”。故选C。
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