设随机变量X～N(0，1)．Y～N(1，4)且相关系数ρXY=1，则______． A: PY=-2X-1=1 B: PY=2X-1=1 C: PY=-2X+1=1 D: PY=2X+1=1
设随机变量X～N(0，1)．Y～N(1，4)且相关系数ρXY=1，则______． A: PY=-2X-1=1 B: PY=2X-1=1 C: PY=-2X+1=1 D: PY=2X+1=1
见PDF Task 1, Task 2, Task 3
见PDF Task 1, Task 2, Task 3
Task 1
Task 1
Writing Task 1 is less important than Writing Task 2.
Writing Task 1 is less important than Writing Task 2.
1 unit 1 task 6
1 unit 1 task 6
一个点（Px, Py, Pz）的齐次坐标描述为（ ） A: [Px, Py, Pz]T B: [Px, Py, Pz, 0]T C: [Px, Py, Pz, 1]T D: (Px, Py, Pz)
一个点（Px, Py, Pz）的齐次坐标描述为（ ） A: [Px, Py, Pz]T B: [Px, Py, Pz, 0]T C: [Px, Py, Pz, 1]T D: (Px, Py, Pz)
Unit 6 Vocabulary Task 1: Matching(副本) Task 1 Match the words or phrases on the left with their meanings on the right.
Unit 6 Vocabulary Task 1: Matching(副本) Task 1 Match the words or phrases on the left with their meanings on the right.
Until 16（1）Task B
Until 16（1）Task B
P83-84WRITE DOWN YOUR ANSWER OF TASK 1/2, AND CRITICAL LISTENING TASK 1[音频]
P83-84WRITE DOWN YOUR ANSWER OF TASK 1/2, AND CRITICAL LISTENING TASK 1[音频]
Task 1 Listen to the conversation betwee... 1-Listening-1.mp3:
Task 1 Listen to the conversation betwee... 1-Listening-1.mp3: