摘要：25．The scientist has made another discovery, I believe is of great importance． A．that B．／ C．which D．why
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The scientist has made another discovery, ________ I believe is of great importance．
[ ]
A．that
B．/
C．which
D．why
The scientist has made another discovery, ________ I believe is of great importance.
[ ]
|
A．that |
B．/ |
|
C．which |
D．why |