Does the pre-test class of Nortel Performance Department start from Grade One? Where to go to the pre-test class, and what is the process? I feel so confused that I can't understand it. There are exams. It is best to take the preparatory class of performance from the first year of high school, and you can use the winter and summer vacations to start. There are many pre-test classes all over the country, but if you take the Nortel test, you'd better go to Beijing to find a training class. There are many choices, so be careful not to be fooled. The requirements of body and vocal music are different from those of professional dance and music, but it is between professional and amateur to show a higher level. The height requirement is very high, boys should not be lower than 172 and girls should not be lower than 160. Please adopt ~