The quiz is as follows:
* There are 5 houses, each is a different colour
* In each house lives a person of a different nationality.
* These 5 owners all drink a certain beverage, smoke a certain brand of cigar and keep a certain pet.
* No owner has the same pet, smokes the same brand of cigar or drinks the same drink as another owner.
1: The Briton lives in a red house.
2: The Swede keeps dogs as pets
3: The Dane drinks tea
4: The green house is on the left of the white house (they are also next door to each other)
5: The green house owner drinks coffee
6: The person who smokes Pall Mall rears birds
7: The owner of the yellow house smokes Dunhill
8: The man living in the house right in the center drinks milk
9: The Norwegian lives in the first house
10: The man who smokes Blend lives next to the one who keeps cats
11: The man who keeps horses lives next to the man who smokes Dunhill
12: The owner who smokes Blue Master drinks beer
13: The German smokes Prince
14: The Norwegian lives next to the blue house
15: The man who smokes Blend has a neighbor who drinks water.
The question is: WHO KEEPS FISH?
上帝,有种回复一下,顺便代详细解释,OK?
A cat is placed in a sealed box. Attached to the box is an apparatus containing a radioactive atomic nucleus and a canister of poison gas. This apparatus is separated from the cat in such a way that the cat can in no way interfere with it. The experiment is set up so that there is exactly a 50% chance of the nucleus decaying in one hour. If the nucleus decays, it will emit a particle that triggers the apparatus, which opens the canister and kills the cat. If the nucleus does not decay, then the cat remains alive. According to quantum mechanics, the unobserved nucleus is described as a superposition (meaning it exists partly as each simultaneously) of "decayed nucleus" and "undecayed nucleus". However, when the box is opened the experimenter sees only a "decayed nucleus/dead cat" or an "undecayed nucleus/living cat."
The question is: when does the system stop existing as a mixture of states and become one or the other (see basis function)?
my God,if you really in the world,please show me the answer,okey?