个人对自己“应该是”或“必须是”等的理想状态是()
A. 理想自我
B. 目标自我
C. 现实自我
D. 实现自我
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A declaration made by the Master before a PRC Consul,giving particulars regarding heavy weather or other incidents which may have caused damage to the vessel or cargo,through no fault of the vessel,her officers,or crew is a(n)().
A. cargo addendum
B. exception report
C. Master's declaration
D. note of protest
乌喙突最早出现在:()
A. 麻雀
B. 蝙蝠
C. 蝾螈
D. 鼹鼠
An unstable upright equilibrium position on a vessel means that the mrtacenter is().
A. lower than the center of gravity
B. at the same height as the center of gravity
C. heigher than the baseline
D. on the longitudinal centerline
真体腔是怎样形成的?它的出现在动物进化上有何重要意义?