单项选择题
A.Antoni van Leeuwenhoek/Robert Hook B.Antoni van Leeuwenhoek/Robert Koch C.Robert Hook/ Antoni van Leeuwenhoek D.Robert Koch/ Antoni van Leeuwenhoek
A.细菌 Ferdinand cohn B.真菌 Robert koch C.霉菌 Robert Hooke D.酵母菌 Martinus Beijerinck
A.contrast B.magnification C.resolution D.penetration