（）首先用实验的方法研究动物心理，动物的学习是一种尝试与错误的过程。
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《楚辞》包括两类作品：一类是伟大诗人屈原及其楚国诗人根据（）的诗歌。
A new liferaft has been installed on your vessel. The operating cord should be（）.
A. attached to the raft stowage cradle or to a secure object nearby with a weak link
B. checked to see that it's unattached
C. coiled neatly on the raft container
D. faked on deck and lead through a chock
甲于一月份购买了一辆机动车，同时投保了车辆损失险，四月份甲将车转卖给乙，单位做保险合同变更，五月份时车辆因车祸全损。因为做保险合同变更，保险公司应向甲支付保险赔偿金。
A. 正确
B. 错误
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