1-i1+i=(1-i)2(1+i)(1-i)=-2i2=-i．
故选：D．
The company has introduced new technologies from the US, thus _______ its production.
A．has increased
B．increased
C．increasing
D．being increased
It is not surprising if in these conditions people behave aggressively towards each other；it is impossible for them to behave（）
A.otherwise
B.likely
C.likewise
D.alike
