造礁珊瑚是一种()。
参考答案:狭生性生物
There were two small rooms in the house, ____ smaller of which served as ____ kitchen.
A.the, a
B.a, the
C.the, the
D.a, a
《建设工程施工合同文本》由( )组成。
A.协议书
B.中标通知书
C.通用条款
D.工程量清单
E.专用条款