Which of the following is true about the attempts to save these birds from extinction?
A.There is disagreement about the methods employed.
B.The majority of condors released into the wild became ill.
C.Attempts to breed condors in captivity have failed.
D.Condors reintroduced into the wild are unable to hunt.
第3题
心脏大血管第二斜位的冠状面与暗盒的夹角为
A.8°~12°
B.18°~20°
C.21°~28°
D.32°~38°
E.55°~65°
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