女，50岁，牙龈红肿，有一1cm大小的疱，颜色灰白，无周缘扩展现象。镜下可见基底层下疱，基底细胞变性，上皮全层剥脱，胶原纤维水肿，有大量淋巴细胞浸润。免疫病理显示，上皮基底膜区域有免疫球蛋白及补体沉积，抗基底膜抗体阳性。病理诊断为
A. 白斑
B. 扁平苔藓
C. 天疱疮
D. 良性黏膜类天疱疮
E. 慢性盘状红斑狼疮
查看答案
Walking as a form of exercise helps you to ________________.
A. drink more water
B. eat more healthily
C. sleep for longer
D. feel better about yourself
For walking to improve your health, you must _____________.
A. walk for more than half an hour a day
B. do it regularly
C. be in the right mood
D. be enthusiastic about it
When you walk, it's a good idea to _______________.
A. relax
B. keep your hands straight
C. look a long way ahead
D. use a pedometer
Walking ________________.
A. is not as good for you as running
B. benefits the mind more than the body
C. is a way of curing certain illnesses
D. is known to be one of the best forms of exercise for your health
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