鲫鱼的体表具有黏液，可以减少运动阻力。[ ]
√
取得开发项目用地所发生的费用为( )。
A．用地使用费B．土地费用C．土地转让费D．土地租用费
The _______ income of the common people has been greatly increased in the past thirty years ______ the reform and opening-up policy in China.
A．regular; because
B．usual; thanks to
C．normal; on an account of
D．annual; owing to
