正常时从胎儿娩出到胎盘娩出所需的时间为（）

A.5～10分钟，不超过15分钟

B.5～10分钟，不超过25分钟

C.5~15分钟，不超过30分钟

D.10~20分钟，不超过30分钟

E.20~30分钟，不超过60分钟

情景选择。

1. 你去买东西时，营业员会对你说：[ ]

A. How much is it?

B. The shirt is pretty.

C. Can I help you?

2. 当你想问价钱时，应该说：[ ]

A. What time is it?

B. How much is it?

C. How many?

3. 你想问北京的天气情况，应该说：[ ]

A. What's that?

B. Is it windy today?

C. What's the weather like in Beijing?

4. 你想说明那是你的牛仔裤，可以说：[ ]

A. Those are my jeans.

B. That's my jeans.

C. It's my pants.