测量的效度
参考答案:
调查结果说明调查所要说明的问题的正确程度。
—How long have you__________?
—For three days. [ ]
A. got a headache
B. fallen ill.
C. caught a cold
D. had a cough
观察舌形不包括下列哪项内容
A.胖大
B.肿胀
C.裂纹
D.舌疮
E.短缩