The Arc de Triomphe is the largest triumphal arch in existence.

A completely new situation will _______ when the examination system comes into existence.

The widespread existence of _______

Ancestor worship is notbased on the belief that deceased family members have a continued existence.

Is the following statement correct?In the future, robots may be classified as a "third existence" that is different from life/creature (first existence) and non-life/creature (second existence). Their appearance and behavior are similar to living bodies, but they do not have self. awareness.()

The expression, to lead a dog’s life, describes a person who has a happy existence.

It is not the consciousness of man that determines his existence, but, ____ , his social existence determines his consciousness. A: on the average B: on the contrary C: on the whole D: on the other hand

Scientists cannot _______ the existence of life on other planets.

We can _______ their existence and know something of their nature.

______(我们绝不应该)tolerate the existence of such a phenomenon.