多项选择题

Although the feeding activities of whales and walruses give the seafloor of the Bering Shelf a devastated appearance, these activities seem to be actually ______ to the area, ______ its productivity.

A. beneficial
B. detrimental
C. superfluous
D. encumbering
E. redirecting
F. enhancing
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多项选择题
Having no sense of moral obligation, Shipler was as little subject to the ______ of conscience after he acted as he was motivated by its ______ before he acted.
A. rewards
B. balm
C. reproaches
D. chastisement
E. promptings
F. atonement
单项选择题
Although the passage of years has softened the initially hostile reaction to his poetry, even now only a few independent observers ______ his works.
A. praise
B. revile
C. scrutinize
D. criticize
E. neglect
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