Naturalists say that (there is evidence) to support the assertion (which) anthropoids, (whether in) (captivity) or in the native state, sometimes beat their breasts.
A.there is evidence
B.which
C.whether in
D.captivity
第5题
A.3~6小时
B.10~15小时
C.12~36小时
D.3~4天
E.5~8天
细胞内缺水和缺钾应多长时间纠正
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