3. After the examination ends, submit both this test paper and the answer sheet together. I. Multiple Choice Questions: This section has 12 questions, each worth 5 points, for a total of 60 points. For each question, only one of the four options is correct. 1. Given sets $A = \{ - 1,0,1,2 \} , B = \left\{ x \mid x ^ { 2 } \leq 1 \right\}$ , then $A \cap B =$ A. $\{ - 1,0,1 \}$ B. $\{ 0,1 \}$ C. $\{ - 1,1 \}$ D. $\{ 0,1,2 \}$ 2. If $z ( 1 + \mathrm { i } ) = 2 \mathrm { i }$ , then $z =$ A. $-1-i$ B. $- 1 + \mathrm { i }$ C. $1-i$ D. $1 + \mathrm { i }$ 3. Journey to the West, Romance of the Three Kingdoms, Water Margin, and Dream of the Red Chamber are treasures of classical Chinese literature, collectively known as the Four Great Classical Novels of China. To understand the reading situation of these four classics among students at a school, a random survey was conducted of 100 students. Among them, 90 students had read Journey to the West or Dream of the Red Chamber, 80 students had read Dream of the Red Chamber, and 60 students had read both Journey to the West and Dream of the Red Chamber. The estimated ratio of the number of students who have read Journey to the West to the total number of students in the school is A. 0.5 B. 0.6 C. 0.7 D. 0.8
Given $a = \log _ { 2 } 0.2 , b = 2 ^ { 0.2 } , c = 0.2 ^ { 0.3 }$, then
3. After the examination ends, submit both this test paper and the answer sheet together.\\
I. Multiple Choice Questions: This section has 12 questions, each worth 5 points, for a total of 60 points. For each question, only one of the four options is correct.
1. Given sets $A = \{ - 1,0,1,2 \} , B = \left\{ x \mid x ^ { 2 } \leq 1 \right\}$ , then $A \cap B =$\\
A. $\{ - 1,0,1 \}$\\
B. $\{ 0,1 \}$\\
C. $\{ - 1,1 \}$\\
D. $\{ 0,1,2 \}$
2. If $z ( 1 + \mathrm { i } ) = 2 \mathrm { i }$ , then $z =$\\
A. $-1-i$\\
B. $- 1 + \mathrm { i }$\\
C. $1-i$\\
D. $1 + \mathrm { i }$
3. Journey to the West, Romance of the Three Kingdoms, Water Margin, and Dream of the Red Chamber are treasures of classical Chinese literature, collectively known as the Four Great Classical Novels of China. To understand the reading situation of these four classics among students at a school, a random survey was conducted of 100 students. Among them, 90 students had read Journey to the West or Dream of the Red Chamber, 80 students had read Dream of the Red Chamber, and 60 students had read both Journey to the West and Dream of the Red Chamber. The estimated ratio of the number of students who have read Journey to the West to the total number of students in the school is\\
A. 0.5\\
B. 0.6\\
C. 0.7\\
D. 0.8