2. Preschool education can be transferred to oil, and next semester. Under normal circumstances, it is necessary not to fail the subject. If the test scores are in the top few grades, other methods will not be mentioned.
It is ok to take two majors, but you must learn well before you can take the exam. You may or may not be promoted to an undergraduate course, and you may be promoted to an undergraduate course across majors.
It is ok to transfer to other departments, but this method needs to work on its own.