【单选题】Students are not allowed to ______ for the final exam if they have missed one third of the classes.
【单选题】食品生产经营人员在上岗工作前,应当取得什么证明
【判断题】光敏二极管,有光照射时,其反向电阻变大。
【简答题】教师用红笔批改作业,这是运用了知觉的A. 整体性 B. 理解性 C. 选择性 D. 恒常性 E. 适应性
【单选题】It can be inferred that______.
A.
people are not allowed to drive after they drink one quarter in the evening
B.
people are still allowed to drive after they drink one quarter in the evening
C.
people are still allowed to drive after they drink out pint at lunch-time
【单选题】No one is allowed ______ in the classroom.
【简答题】No one is allowed to take the computers home without (permit) ______.
【单选题】To keep the environment clean, no one _____ smoke here. [ ]