疑有绒癌脑转移,可根据下列指标诊断除外().
A.脑CT
B.脑缺血的一过性症状:突然跌倒、头痛、抽搐、偏瘫
C.脑脊液:血清hCG>1:20
D.脑部MRI
E.B超
参考答案:E
平版印刷有何优点与缺点?
()is the application of planned, systematic quality activities to ensure that the project will employ all processes needed to meet requirements.
A.Quality assurance (QA)
B.Quality planning
C.Quality control (QC)
D.Quality costs