In 1778, Joseph Banks was elected ______ president of the Royal Society, ______ position he held for 42 years.
A.the ; the | B.a ; a | C.不填 ;a | D.a ; 不填 |
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In 1778, Joseph Banks was elected ______ president of the Royal Society, ______ position he held for 42 years.
A.the ; the | B.a ; a | C.不填 ;a | D.a ; 不填 |