腰椎间盘突出症的典型症状是（）.
A.A腰背痛
B.下肢无力
C.腰痛伴坐骨神经痛
D.坐骨神经痛
E.腰部活动受限
参考答案：C
我国城市房地产税目前的税率为( )。
A．标准房价的1.8%
B．标准房租价的18%
C．房产余值的1.2%
D．租金收入的12%
29. Reading offers only material of knowledge, without thinking, however, it’s hardly possible to make ______ we read ours.
A．that
B．what
C．how
D．It
