凡用水果酿造的蒸馏酒都统称为（）。
A、果酒
B、白兰地
C、干邑
D、鸡尾酒
参考答案：B
设复数z满足z(2-3i)=6+4i（其中i为虚数单位），则z的模为_______ __.
---I saw your sister ride a new bike this morning.
---A new bike? She ________ it for about two years.
A．bought
B．has bought
C．had
D．has had
