— ________ is your new bike?
— I ________ about 900 yuan for it.
A:How many; paid
B:How much; paid
C:How much; took
新疆人民广播电台维吾尔语节目的发射频率是92.3MHz,它的波长是多少?
下列关于绿色植物与生物圈中水循环的关系叙述中不正确的是( )