天车与钢丝绳、游动滑车构成游动系统。
参考答案：对
经络从简单的要领逐步形成系统理论，其间受到何种学说的影响（）。
A.阴阳学说
B.五行学说
C.卫气营血学说
D.六经辨证学说
E.脏象学说
It is said that bad living habits as well as dirty surroundings, stuffy rooms and some other
factors _____ the wide spread of H1N1. [ ]
A. result from
B. benefit from
C. devote to
D. contribute to
