gaokao 2019 Q2

gaokao · China · national-I-science Not Maths
2. For multiple choice questions: After selecting the answer for each question, use a 2B pencil to blacken the corresponding answer choice on the answer sheet. Answers written on the test paper, scratch paper, and non-answer areas on the answer sheet are invalid.
Let the complex number $z$ satisfy $| z - i | = 1$, and the point corresponding to $z$ in the complex plane is $y$
2. For multiple choice questions: After selecting the answer for each question, use a 2B pencil to blacken the corresponding answer choice on the answer sheet. Answers written on the test paper, scratch paper, and non-answer areas on the answer sheet are invalid.