压气机发生喘振时,有()现象。
A、转子损坏
B、机身抖动,振动加大
C、排气温度升高
D、声音降低
参考答案:B
— The film bored me to death. How do you find it?
— I wish I hadn’t gone to see it.
A.I didn’t get that.
B.I have no idea.
C.I couldn’t agree with you more.
D.It’s totally fascinating.
以下哪项不属与海绵状脑病的病变特点()
A.神经毡形成
B.炎症反应
C.反应性胶质化
D.神经细胞缺失
E.大脑可无明显萎缩