医师利用计算机开具普通处方，则不需使用纸质处方。
参考答案：错
______ you eat the correct foods ______ be able to keep fit and stay healthy. [ ]
A. Only if; will you
B. Only if; you will
C. Unless; will you
D. Unless; you will
乳腺癌患者ER或PR阳性，内分泌治疗有效率为（）。
A.小于10%
B.20%
C.30%
D.50%
E.60%～70%
