据演替起始基质的性质不同，生态演替可分为______和______。
参考答案：自养型演替异养型演替
_______ , my deskmate and I were born on the same day and same year, so we have a lot in
common. [ ]
A. By accident
B. By chance
C. By coincidence
D. By misadventure
张口下颌偏向右侧病变在：（）
A.右侧舌下神经
B.右侧三叉神经
C.右侧面神经
D.左侧三叉神经
E.左侧面神经
