问题
多项选择题
导致不孕的输卵管因素有()
A．输卵管阻塞
B．慢性输卵管炎
C．输卵管发育不全
D．输卵管伞端闭锁
E．输卵管通而不畅
答案
参考答案：A, B, C, D, E
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导致不孕的输卵管因素有()
A．输卵管阻塞
B．慢性输卵管炎
C．输卵管发育不全
D．输卵管伞端闭锁
E．输卵管通而不畅
参考答案：A, B, C, D, E
| 阅读理解。 |
 Dolphins are mammals, not fish. They are warm blooded like man, and give birth to one baby, called a calf, at a time. At birth, a bottlenose dolphin calf is about 90-130 cms long and will grow to approximately 4 metres, living up to 40 years. They are highly sociable animals, living in groups, called pods, which are fairly fluid, with dolphins from other pods interacting with each other from time to time. Dolphins carry their young inside their womb for about 12 months. The baby is born tail first, and its mother will feed the calf for up to 2 years. However, the calf will stay with its mother for between 3-6 years, during which time it will learn all about feeding techniques, social interaction and group hunting. |
| 1. What is a baby dolphin called? |
[ ] |
| A. A pod B. A baby C. A womb D. A calf |
| 2. How long does a dolphin calf stay with its mother? |
[ ] |
| A. 12 months B. 2 years C. 3-6 years D. 40 years |
| 3. What kind of blood does a Dolphin have? |
[ ] |
| A. warm-blood B. cold-blood C. salt-water blood D. we don't know |
| 4. Which statement is Wrong? |
[ ] |
| A. Dolphins are living in groups. B. Dolphins lay eggs. C. Dolphins can live up to 40 years. D. Dolphins are not fish. |