测量细菌大小的单位是
A. 厘米
B. 毫米
C. 微米
D. 纳米
E. 分米
只有在电子显微镜下观察到的细菌结构是
A. 荚膜
B. 菌毛
C. 鞭毛
D. 芽胞
E. 异染颗粒
About 3.5billionfans watch the sport. During important international ______, soccer has the highest televisionaudiencein the world.
Soccer is not a new sport._____aren’t sure exactly where or when the sport was invented.