关于腮腺混合瘤,下列哪项是的
A.又称多形性腺瘤B.为涎腺中发病率最高的肿瘤C.与周围组织无粘连,可有一定活动度D.肿瘤生长迅速,多不伴其它症状E.单侧发病常见
参考答案:D
Software maintenance is to do necessary modification,supplenemt, and completeness during software life circle. Among the following vary kinds of maintenance,which one has the maximum workload in a general way
A. relevance maintenance
B. completeness maintenance
C. correctness naintenance
D. other kinds of maintenance
防洪检查中对暂时无法整治的病害处所应如何处理?