【单选题】By saying that 'they are cultural commas and semicolons ...' the author means that commas and semicolons ______.
A.
can be interpreted as subculture of American life
B.
can be identified as various ways of American life
C.
stand for work and rest in American life
D.
are preferred in writing the stories concerning American life
【单选题】Both Lily and Lucy ______ to the party .
【简答题】防治流砂的主要措施:______、______、______、______、______、______。
【单选题】在渗流水力坡度小于临界水力坡度的土层中施工建筑物深基础时,可能出现()。 A.轻微流砂 B.中等流砂 C.严重流砂 D.机构潜蚀
【单选题】Both Lily and Lucy ______ to the party yesterday.