(单选题)
______ is known to us is that the old scientist, for ______ life was hard in the past, still works very hard in his eighties.
A.As; whom
B.What; whom
C.It; whose
D.As; whose
参考答案:B
知识点:
(单选题)
______ is known to us is that the old scientist, for ______ life was hard in the past, still works very hard in his eighties.
A.As; whom
B.What; whom
C.It; whose
D.As; whose
参考答案:B
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