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One of the most important questions the government had to consider was _____ of public
health.

A. what
B. this
C. that
D. which
C
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科目：高中英語 來源：0123 期中題 題型：單選題

One of the most important questions the government had to consider was _____ of public
health.
[     ]
A. what
B. this
C. that
D. which

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科目：高中英語 來源： 題型：

One of the most important questions the government had to consider was _____ of public health.

A. what                       B. this   C. that                          D. which

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