CET4 阅读套路 CET4 Reading Drill (98) Name: __________ Date: __________ Score: __________ [Variant 3] Banked Cloze + Long Reading Matching + Strategy Section A: Banked Cloze (10 bl...

CET6 翻译常考词 CET6 Translation Practice (161) Date: __________ Score: __________ Time: 30 min Part I: Chinese-to-English Translation (30 minutes) Directions: Translate the follow...

CET6 写作模板 CET6 Writing Template (61) Topic: __________ Date: __________ Score: __________ Part I: Writing Prompt Directions: For this part, you are allowed 30 minutes to write ...

CET6 写作模板 CET6 Writing Template (90) Topic: __________ Date: __________ Score: __________ Part I: Writing Prompt Directions: For this part, you are allowed 30 minutes to write ...

CET6 听力技巧 CET6 Listening Drill (119) Name: __________ Date: __________ Score: __________ Section A: Long Conversation Listening Script W: Hi Tom, you look exhausted. What is go...

线性代数 6大典型题 - 二次型 编号：111 四、二次型正定性的判定 专题 【题目】判定 f=x₁²+2x₂²+3x₃²+2x₁x₂+2x₁x₃ 是否正定。 【解析】写出对称矩阵 A=[[1,1,1],[1,2,0],[1,0,3]]。 ...

CET6 听力技巧 CET6 Listening Drill (148) Name: __________ Date: __________ Score: __________ Section A: Long Conversation Listening Script M: Hey, have you decided on the topic for...

线性代数 答题模板 - 矩阵 编号：034 题型五：特殊矩阵与正交矩阵 答题模板 【模板结构】 第一步：识别矩阵类型：对称/反对称/正交/幂等/幂零/对合。 第二步：根据类型套用判定条件。 - 对称：A...

线性代数 6大典型题 - 特征值 编号：135 四、实对称矩阵正交对角化 专题 【题目】对实对称矩阵 A=[[2,1],[1,2]] 作正交对角化。 【解析】① 特征值：|2-λ 1; 1 2-λ|=(2-λ)²-1=λ²-4λ+3=0...

CET6 阅读套路 CET6 Reading Drill (136) Name: __________ Date: __________ Score: __________ Section A: Banked Cloze (10 blanks, 10 points) Directions: Fill in each blank with a word...