大气的湿度高对喷气发动机工作有什么影响()
A.P4减小,P2增加
B.涡轮和压气机转速降低
C.燃油流量减小和排气温度升高
D.影响很小
参考答案:D
患者,男,38岁,江西南昌人,被狗咬伤五天后出现怕水恐光,来我院就诊。
本病的确诊依赖()
A.分离出病毒
B.酶联免疫技术检测狂犬病毒抗原
C.血常规
D.活检
E.脑CT
Although all of the apples ________, none of them ________ good.[ ]
A. have been tasted; taste
B. have been tasted; are tasted
C. have tasted; taste
D. have tasted; are tasted