津液，是人体一切水液的总称。（）
参考答案：错
Let's _____ and _____ lunch now. [ ]
A. to go, to have
B. to go, have
C. go, have
D. go, have
架空通信线路与公路交越时的最小垂直净距为（）米
A.5
B.5.5
C.7
D.8
