食用菌丝区别于霉菌菌丝的主要特征是（）
A.隔膜
B.锁状联合
C.菌丝分枝
D.菌丝体繁茂
E.以上都对
参考答案：B
书面表达
以“How did you spend last Sunday? Did you have a good time? What were you doing at different times last Sunday？”写一篇80词左右的短文。
提示：watch a movie, climb mountains, play basketball, visit friends, play computer games,
do housework ... happy, excited, sad ...
铁路线路分为哪几种？
