润滑油调合温度过高,将对()产生不利影响。
A、油品质量
B、均匀混合
C、搅拌效果
D、生产效率
参考答案:A
一When shall we start the restoration of the historic buildings?
一Not until our plan________ by the committee.
A.will be approved
B.approves
C.is to approve
D.has been approved
要明确诊断最直接的检查是
A.头部X线片
B.头部CT
C.头部MRI
D.肿物穿刺
E.头部B超