单项选择题：气管切开术后出现广泛皮下气肿，最简单的处理方法是( )A．抽吸气体 B．松解伤口缝

题型：单项选择题

阅读理解。

Animals grow up in different ways. They have lots of lessons to learn.

Some animals are born helpless but their mothers protect them. A newborn kangaroo is the size of a bee.

She stays in her mother's safe pouch. She doesn't open her eyes for at least five months. A newborn monkey

cannot walk. He is carried by his mother.

Other baby animals can walk soon after they're born. They learn to run with their mother when danger is

near. A baby zebra (斑马) can run an hour after she is born.

Some baby animals are born in a place that is safe. Other baby animals are born in the open. Baby wolves

are born in large holes. A baby elephant is born on open, grassy land. Other elephants make a circle (圈) to

protect her.

Animals that drink their mothers' milk are called mammals. A mother bear's milk is fatty and rich. Baby

bears need lots of fat to keep warm in winter. They have milk for six months. Baby zebras drink milk for six

months or more! As baby animals grow they need solid (固体的) food. Baby lions eat what their mother can

catch.

1. Which baby animals don't open their eyes for at least five months?

A. Lions.

B. Zebras.

C. Kangaroos.

D. Elephants.

2. What can't a baby zebra do an hour after she is born?

A. Drink milk.

B. Walk by herself.

C. Run with her mother.

D. Make a circle to protect herself.

3. Which of the following is TRUE according to the passage?

A. Baby wolves are born in the open.

B. Newborn lions only eat solid food.

C. Newborn monkeys can walk but can't jump.

D. Baby bears need lots of fat to keep warm in winter.

查看答案

气管切开术后出现广泛皮下气肿，最简单的处理方法是( )A．抽吸气体 B．松解伤口缝