子弹射入木块的过程中______能转化成______能．
子弹射木块时，要克服阻力做功，把子弹的机械能转化为内能．
故答案是：机械；内．
浸润型肺结核和慢性纤维空洞型肺结核分型的最主要鉴别依据是
A．肺实变征B．X线胸片表现C．痰菌情况D．血沉E．结核中毒症状
______the sports meeting we held in our school last week was!
A How exciting B What an exciting C What an excited D How excited
