在PubMed中利用主题词检索CT诊断脑肿瘤(braincancer)的文献，应采用的检索式为（）
A.("Tomography，X-RayComputed"[Mesh])AND"BrainNeoplasms/diagnosticimaging"[Mesh]
B.("Tomography，X-RayComputed"[Mesh])AND"BrainNeoplasms/diagnosis"[Mesh]
C.(CTAND"BrainNeoplasms/diagnosis"[Mesh]
D.CTANDBrainNeoplasms
E.("Tomography，X-RayComputed"[Mesh])AND"BrainNeoplasms"[Mesh]
正确答案：A