商标专用权也可称为商标权，是指商标注册人对其注册商标所享有的权利。
参考答案：对
Do you know by the time you leaves school your parents ________ $ 6 000 on your education.
A．will have spent
B．will spend
C．will be spending
D．have spent
不改变关系表中的属性个数但能减少元组个数的是______。
