问题
单项选择题
流产的主要原因
A．基因异常
B．受精卵发育异常
C．子宫畸形
D．内分泌失调
E．妊娠期创伤
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
流产的主要原因
A．基因异常
B．受精卵发育异常
C．子宫畸形
D．内分泌失调
E．妊娠期创伤
参考答案：A
| Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. |
Where is the parking lot
A．On the lea of the building.
B．Under the building.
C．In the front of the building.
D．On the right of the building.