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问题 单项选择题

属于口腔颌面部癌前状态的是

A．红斑和白斑

B．口腔扁平苔藓上皮过角化

C．盘状红斑狼疮和梅毒

D．口腔黏膜下纤维性变和先天性角化不良

E．B+C+D

答案

参考答案：E

单项选择题

Chang, Tian and An are three users of the system. Chang and An are in the same group. Tian is a Super User. Which of the following rights is inconsistent with the given policies

A． Tian has W(write) access to An''s Mail files

B． Tian has E(execute) access to An''s Mail files

C． Chian has R(read) access to An''s text files

D． Tian has E(execute) access to Chang''s Binary files
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选择题

We have to say that nowadays, the soul of Chinese basic education is competition _____ learning.

A．other than

B．less than

C．more than

D．rather than
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