Habit such as _______ is bad for our health.

A．eating too much junk food

B．drinking much too coffee

C．playing basketball

D．stay up late

森林上茎干病害的症状类型主要有（）及（）、枝枯、肿瘤丛枝、带化、萎蔫、立木腐朽、流胶流脂，不同症状类型的茎秆病害发生严重时，最终都能导致枯萎死亡。