神经衰弱症状的具体表现是( )。A．联想和回忆增多但不杂乱B．一般不会伴有言语运动

选出没有通假字的一项（     ）

A．独五人之皦皦

B．扈江离与辟芷兮

C．主辱，臣死有余僇

D．即今之傫然在墓者也

直肠癌的静脉、淋巴扩散途径，下列错误的是（）

A.淋巴转移只有当肿瘤侵犯到黏膜下层时才可能发生

B.淋巴转移是直肠癌最主要的扩散途径

C.向上转移是淋巴转移的主要方向

D.癌细胞可通过神经鞘扩展

E.癌栓通过肠系膜下静脉、门静脉转移到肝和肺

In object-oriented (51) , objects can be viewed as reusable components, and once the programmer has developed a (52) of these components, he can (53) the amount of new coding required. But (52) a (54) is no simple task because the integrity of the Original software design is critical. Reusability can be a mixed blessing for user, too, as a programmer has to be able to find the object he needs. But if (55) is your aim, reusability is worth the risk.

A．complexity

B．creating

C．indisposing

D．library

E．maximize

F．minimize

G．reading

H．procedure

I．productivity

J．programming K. security L. using

写出两种复式补泻手法的名称（）

某医生在进行科研工作时，根据资料性质，正确地计算统计指标并作了t检验。

进行t检验的条件之一是

A．正态分布资料

B．正偏态资料

C．负偏态资料

D．任意分布的资料

E．n比较大的资料