滑坡或坍塌前、土石接合部不密实、黏土干缩、不均匀沉陷、两工段接头不好、松散土层等因素都可能导致发生()。
A.渗水
B.裂缝
C.漫溢
D.风浪
参考答案:B
It goes________my principles to cheat in the exam.
A.for
B.against
C.above
D.beyond
______ people went to the concert last week. [ ]
A. Hundred
B. Three millions
C. Millions of
D. Three million of