睾丸是男性性腺,位于阴囊内,产生________和________激素

mge hs the wildfirelredy cused Locl oil tnks exploded due to the fire. B．Dozens of houses were burned down. C．Thousnds ofcres of lnd ws burned. D．Trees in the forest were gretly destroyed.A．Local oil tanks exploded due to the fireB．Dozens of houses were burned down．C．Thousands of acres of land was burneD．Trees in the forest were greatly destroyeD．

A、低速磨煤机
B、高速磨煤机
C、中速磨煤机
D、都不属于