混凝土的运输过程中应采取必要的措施减少混凝土的热损失，保证混凝土入模温度不低于（）
A.5℃
B.7℃
C.8℃
D.10℃
参考答案：A
旅游规划的特征是什么？
No decision______about any future appointment until all the candidates have been interviewed.
A. will be made B. is made C. is being D. has been made
