下列生物不是用分裂生殖方式进行繁殖的是[ ]
A.细菌
B.草履虫
C.酵母菌
D.变形虫
答案:C
As a teacher you should _________ your method to ______ the needs of slower students.
A.apply; enable
B.adjust; meet
C.increase; change
D.weigh; shape
不会导致全冠粘固后出现龈缘炎的是()
A.轴壁突度不良
B.咬合早接触
C.冠边缘不密合
D.龈沟内粘固剂残留
E.冠边缘过长