[单选题]
An n-type semiconductor is3pk+91: h6p2zq4 wjra3tmjj q(b qqgn produc4ep7m*y df cb enbg 0v8)pv; n(t8xxm*ed by
A. doping the host crystal with donor impurities.
B. doping the host crystal with accepter impurities.
C. pure crystals of germanium.
D. none of the given answers
Post time 2024-1-14 18:37:39