NPT-5型空气压缩机组装后不进行()试验。
A、压力试验
B、磨合试验
C、风量试验
D、温度试验
参考答案:A
______the bones under the sand,the scientists concluded that they came from the dinosaurs about 65 million years ago.
A.Being inspected
B.Inspected
C.Having inspected
D.To inspect
当前,在计算机应用方面已进入以( )为特征的时代。
A.并行处理技术B.分布式系统C.微型计算机D.计算机网络