A wedding ring ___________ （symbol) the union of husband and wife.

1. A husband and wife have normal vision, although both of their fathers are red-green color-blind, which is inherited as an X-linked recessive condition. Question: What is the probability that their first child will be (1)a normal son? (2) a normal dauther? (3) a color-blind son? (4) a color-blind daughter?

What is the relationship between hypertension and weight?

According to the poem “on Marriage”， between husband and wife there must be no space.

What’s the relationship between Vladimir and Estragon like?

In order to keep close relationship between friends is to pay respect to each other.

Please read the sample dialogue in Unit 3(Customs) with your partner and upload your recording.

I applied for CIT on the teacher’s _________(recommend) and have never regretted it ever since.

After weeks of discussion the two sides have reached a _________(mutual) acceptable settlement.

算法和数据结构的难度——10 分 数据结构的起评分： 2 分：数组 3 分：结构体数组 4 分：结构体数组 + 指针（结构体指针/指针数组/函数指针/动态数组等） 5 分：链表等动态数据结构 在以上起评分的基础上，按以下要素累计算法加分，10 分封顶。 +1 分：枚举/递推/迭代/分类统计 +1 分：排序/查找 +1 分：模糊匹配 +1 分：文件操作 +1 分：加入音效 +2 分：递归 +3 分：与树或图等数据结构相关的算法，或其他人工智能算法