地砖中瓷质砖吸水率应小于()。
参考答案:0.5%
脑功能评价最常用的手段是()
A.磁共振
B.TCD
C.体感诱发电位
D.肌电图
E.脑电图
________, he still couldn't afford it.
A.Cheap although the computer was
B.Cheap as the computer was
C.As the computer was cheap
D.However cheap was the computer