在建筑工程中,材料费约占总造价的( )。
A.40%~50%
B.50%~60%
C.60%~70%
D.70%~80%
参考答案:C
25.His daughter is always shy in_____ and she never dares to make a speech to_____.
A.the public; the public
B.public; the public
C.the public; pubic
D.public; public
有淋巴结肿大的疾病包括()
A.布氏杆菌病
B.猫抓病
C.钩端螺旋体病
D.衣原体感染
E.流行性出血热