When there is【C8】______ over territory, animals will commonly use force, or a【C9】______ of force, to decide which will stay and which will go.
It is interesting to note, however, that animals seem to use only the【C10】______ amount of force necessary to drive away the【C11】______
There is usually no killing. In the 【C12】______ of those animals which are capable of doing each other harm, there is a【C13】______ .
for the losing animal to show the winning animal that he wishes to submit. When he shows this, the【C14】______ normally stops fighting. Animals (especially birds), which can easily escape from conflict seem to have no【C15】______ against killing, and equally no mechanism for 【C16】______ .
The【C17】______ bird simply flies away. However, if two doves are【C18】______ in a cage, and they start fighting, they will continue to fight until one kills the other. We all think of the dove as a【C19】______ of peace and, in its natural habitat, it is peaceful. But the" peace" mechanism does not【C20】______ in a cage.
【C1】
A.establishes
B.builds
C.founds
D.erects
第4题
A.使用MAN V/S人工控制客舱高度
B.无需执行任何动作
C.人工选择着陆标高
D.将座舱增压方式选择器置于人工位
第6题
A.自动驾驶仪脱开电门已经被按压
B.自动驾驶不工作,要求人工着陆。
C.自动着陆系统没有三个通道着陆的可靠性余度
第7题
A.将P1板上的主明暗灯光测试电门扳到TEST位,自动着陆警告灯就会亮;灯光测试电门放到BRT位或DIM位,自动着陆警告灯就会灭。
B.任意接通一套自动驾驶,按下自动着陆警告灯,红色的自动着陆警告灯就会闪亮;松开自动着陆警告灯,红色的自动着陆警告灯就会熄灭。
C.同时接通两套自动驾驶,按下自动着陆警告灯,红色的自动着陆警告灯就会闪亮;松开自动着陆警告灯,红色的自动着陆警告灯就会熄灭。
D.按下自动着陆警告灯,红色的自动着陆警告灯就会闪亮;松开自动着陆警告灯,红色的自动着陆警告灯就会熄灭
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!