促结缔组织增生型成釉细胞瘤多见于
A．颌骨前部B．前磨牙—磨牙区C．下颌磨牙区D．上颌磨牙区E．下颌升支区
参考答案：A
补体经典激活途径的始动分子是（）。
A.C3
B.C4
C.C1q
D.C1r
E.C1s
句型转换(每空1分，共10分)
小题1:She is cleaning the room now.(就划线部分提问)
______ ______ she ______ now?
小题2:It’s sunny today. (就划线部分提问)
______ the weather today?
小题3:Tom went to the library last Sunday.(改为一般疑问句)
______ Jim ______ to the library last night？
小题4:They usually visit the zoo on Sunday.( 改为否定句)
They ______ ______ usually visit the zoo on Sunday.
小题5:She did her homework last night.(改为否定句)
She ______ ______ her homework last night.
