The book was written in 1946, __________ the education syste

The book was written in 1946, __________ the education system has witnessed great charges.
A.when B.during which
C.since then D.since when
cc明月刀如水 1年前 已收到1个回答 举报

shirley_sue 幼苗

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D。

since when中的when指1946,since when指的是since 1946,即指“自1946年起”。注意不要误选C,如果将C改为and since then,则可选C。

1年前

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