阅读判断(根据表格内容判断正误。正确的用A，错误的用B。)

	Sperm whale	Killer whale
Length	15 meters	8 meters
Weight	35 tons	3,600kg
Teeth	50, each up to 20cm long	40, each up to 20cm long
Tail	8 meters long	6 meters long
Food	Squid, lobsters and small sharks	Fish, birds, seals and even whales
Skill	Can dive into the deep cold water	Good swimmer, can jump out of the water

A killer whale is shorter than a sperm whale in its length.
A sperm whale is heavier than a killer whale in its weight..
A killer whale has 50 teeth, each up to 20cm long.
The tail of a killer whale is longer than a sperm whale.
A killer whale is a good swimmer.