135÷(-45),
=85×(-54),
=-2.
故答案为:-2.
You can't imagine what great difficulty I had _____ a ticket for Jay Chou's concert in Zhengzhou. [ ]
A. to get
B. getting
C. got
D. get
男性,30岁。乏力盗汗一月余,咳痰带血两天,既往胸膜炎病史,X片示左肺尖密度不均影;ESR30mm/h,WBC6.0×109L。
要判断该病处于活动期需了解哪项病史,以便制定正确治疗方案()
A.此次病后诊治经过
B.胸膜炎治疗情况
C.此前健康体检情况
D.青霉素过敏史
E.家族中有无类似患者