题目内容：
根据下面内容，回答题：Eating in space is different from eating'on, earth. The food that astronauts carry with them doesnot look like the food you eat. Some food is carried in closed bags. It is cooked and frozen' before theastronauts get it. All the water is removed from the food. In the spaceship the astronaut puts the waterback. He "shoots" hot or cold water into the food bag with a special gun. He eats the food through asmall hole in the bag.
Other foods come in bite sizes. The astronaut puts a whole piece in his mouth at once. There canbe no crumbs. Crumbs would float around the spaceship and get in the way. Meat and cake oftencome in bite-sized pieces. Astronauts can't drink water from open cups. The water would float indrops in the air. The water is put in the special gun. The astronaut shoots the water into his mouth.Eating in space is not easy. Astronauts must learn to eat this way.
The story does not say this,but from what we have read,we can tell that A．you get much hungrier in space than you do
B．you can't have water to drink in a spaceship
C．astronauts must learn many new and different things
D．you can't eat anything in a spaceship
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