The teacher told the students that they should review their lessons at _____ intervals.
A. proper
B. regular
C. adequate
D. moderate
下列不是在项目实施阶段形成的是( )。
A. 施工合同价
B. 工程结算价
C. 施工图预算
D. 竣工结算
项目控制是一种( )工作,在项目策划的指导下进行。
A. 操作性
B. 执行性
C. 指导性
D. 计划性
How many hours you spend in learning English _____ how well you can learn it.
A. decide
B. decides
C. deciding
D. to decide