下列不属于继发性皮损的是
A.痂
B.疤痕
C.皲裂
D.结节
E.糜烂
参考答案:D
– Would you mind looking after my dog while I’m on holiday?
-- _______.
A.Of course not
B.Yes. I’d be happy to
C.Not at all. I’ve no time
D.Yes, please
单体猛炸药装药密度(),爆速也随之增大,呈直线关系。
A、增大
B、不变
C、减少