肝硬化肝功能代偿期的临床表现最早出现的是:
A. 恶心、厌油
B. 乏力和食欲不振
C. 腹胀、腹痛
D. 上腹不适或恶心
Which is not the tunnel type?
A. soft ground tunnel
B. medium-hard rock tunnel
C. hard rock tunnel
D. narrow tunnel
Which is not the tunnel structure?
A. circle structure
B. rectangular structure
C. horseshoe structure
D. steel structure
Many countries are using tunnel to provide spaces for human activities not include()
A. storage
B. living
C. war
D. transportation