医师不必要地大量为病人做各种各样检测将会E．

A. 治疗作用
B. 不良反应
C. 毒性反应
D. 变态反应
E. 后遗效应

A. They used the wool for clothes.
B. They swang on cotton hammocks.
C. They made beautiful tapestries from cotton.
D. They grew cotton for clothes.