题目内容
The Nanjing Yangtze River Bridge is still very strong, ___________ it is almost 43 years old.
A.although | B.but | C.so | D.because |
A
本题后句为让步状语从句,意思为虽然南京长江大桥有将近43年,但它仍然很牢固,although表示让步,意思为尽管,故选A。

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