Whether it can sustain that momentum is critical of millions of Americans out of

游客2023-12-15 57

问题 Whether it can sustain that momentum is critical of millions of Americans out of work — and perhaps President Obama’s re-election chances.

选项

答案 (critical)of—to

解析 be critical of表示“对……挑剔”，be critical to表示“对……至关重要”。句中指那种势头对美国成千上百万失业者至关重要，因此选用后者。

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