H. J. Rand's prediction about the year 2000 shows that ______.
A.it is easy to figure out in advance what will happen
B.it is difficult to figure out in advance what will happen
C.only professionals can figure out in advance what will happen
D.very few professionals can figure out in advance what will happen
第5题
A、大肠癌治疗以手术为主,术后5年生存率为50%左右
B、病变限于黏膜下层者,术后5年生存率为90%
C、大肠癌淋巴结转移者,术后5年生存率为30%左右
D、大肠癌肝转移根治术后5年生存率为20%~30%
E、晚期大肠癌预后极差,中位生存期为3个月左右
第7题
肺癌5年生存率为
A.5%.~10%.
B.6%.~10%.
C.8%.~13%.
D.13%.~17%.
E.15%.以上
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