()是工程建设领域内的所有工程建设标准,因相互依存、相互制约、相互补充和衔接而构成的科学的有机整体。
A.标准
B.工程建设标准
C.工程建设标准体系
D.国家标准
参考答案:C
用适当的数(式)填空:
(1)x2+8x+(______)=(x+______)2;
(2)x2-6x+(______)=(x-______)2;
(3)x2-px+(______)=(x-______)2.
The workers are building a school. I hope it _____ before August this year. [ ]
A. finishes
B. finished
C. is finished
D. will be finished