计算机辅助测试的英文缩写是CAT。
参考答案：对
To my disappointment, the TV set I had ____ was out of order again. It’s a waste of money.
A．repaired
B．repaired it
C．had repaired it
D．had repaired
脂瘤的内容物是（）。
A.脂肪
B.上皮
C.皮脂
D.血脂
E.结缔组织
