子宫圆韧带（） A．牵引子宫颈向后上方，协同维持子宫前倾 B．是寻找卵巢血管的标志
题型：单项选择题
问题：
子宫圆韧带（）
A．牵引子宫颈向后上方，协同维持子宫前倾
B．是寻找卵巢血管的标志
C．限制子宫向两侧移动
D．是维持子宫前倾的主要结构
E．是固定子宫颈，维持宫颈正常位置，防止子宫脱垂的主要结构
题型：单项选择题
1. Following a logical sequence (逻辑顺序) , can you complete this puzzle? 
Answer:
2. Peter is climbing a tall tree. The tree is 8 metres high. He climbs at four metres a minute, but slips
(滑) down two metres. If you think hard, you'll know how many minutes it takes him to get up.
Answer: _