Today’s scientists are no longer constrained simply by the laws of nature, ______ in the past, but also by the laws (and attitud

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问题 Today’s scientists are no longer constrained simply by the laws of nature, ______ in the past, but also by the laws (and attitudes) of the land.

选项 A、as generally the case
B、as was generally the case
C、as long ago
D、as expected

答案B

解析 B大致相当于 in general 和 as usual。
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