港口与海岸工程专业承包二级企业可承担单项工程合同额不超过企业注册资本金（）倍的近海工程施工。
A.3
B.5
C.8
D.10
参考答案：B
若函数f（x）满足f（x+10）=2f（x+9），且f（0）=1，则f（10）=_______．
Most Irish people go to ______ church every Sunday and ______ church plays ______ important part in their life.
A．/; the; /
B．/; the; an
C．the; /; an
D．/; a; the
