Mei Li:
What is the name for what is basically an induction coil whereby the voltage of an alternating current can be increased or decreased without changing the frequency??
Shuai Zheng:
transformer
Mei Li:
Waitangi Day held each year on February 6 is the national day of New Zealand as a treaty instrumental in the country's history was signed at that place in 1840. The name 'Waitangi' means 'weeping waters' in which language??
Shuai Zheng:
maori
Mei Li:
In which country is the region of Aragon??
Shuai Zheng:
spain