起重机载荷状态Q2的载荷谱系数KF为()。
参考答案:0.25
密质骨结核的X线表现为
A.良性骨肿瘤B.恶性骨肿瘤C.有恶性倾向的良性骨肿瘤D.骨瘤样病变E.继发性骨肿瘤
I _____ not Tina. My name ____ Walter. [ ]
A. am; am
B. am; is
C. am; are
D. is; is