___________
[A] inflating
[B] expanding
[C] increasing
[D] extending
第1题:
第2题:
2) 请选出句中不符合学术写作表达的部分。 Sadly, serious crime, such as murder, is increasing.
A.Sadly
B.serious crime
C.such as
D.increasing
第3题:
A、B、C、D为任意集合,以下正确的是
A.(A∪B)´(C∪D) = (A´C)∪(B´D)
B.(A-B)´(C-D) = (A´C)-(B´D)
C.(A∩B)´(C∩D) = (A´C)∩(B´D)
D.(AÅB)´(CÅD) = (A´C) Å (B´D)
第4题:
第5题:
3、A、B、C、D为任意集合,以下正确的是
A.(A∪B)´(C∪D) = (A´C)∪(B´D)
B.(A-B)´(C-D) = (A´C)-(B´D)
C.(A∩B)´(C∩D) = (A´C)∩(B´D)
D.(AÅB)´(CÅD) = (A´C) Å (B´D)