The chip shortage is a magic mirror! 30 billion chip bull stocks speak out: A once-in-20-year opportunity, the best secretary-general made 2 million in one sentence
Copper prices fell to the lowest level since February last year. There may be a short-term correction, but it is difficult to suppress the downward trend.
Applicable to the first year of high school this year: the proportion of chemistry in the elective exam has been increased, giving you a comprehensive understanding of the chemistry subject
New question types for the first adaptability test of the new college entrance examination are unveiled. The mathematics test paper does not distinguish between arts and sciences.
Copper foil prices have increased by as much as 30% throughout the year, but demand still exceeds supply. Lithium battery and PCB factories are in a hurry