热力管道保温材料进场,应根据标准规定现场按批抽样检测材料的()。
A.密度
B.导热系数
C.透气性
D.表面特性
参考答案:B
对于怀疑恶性肿瘤多处转移,选择下列哪种检查最好()。
A.FDG-PET或PET/CT扫描
B.CT扫描
C.MRI扫描
D.X线平片
E.高分辨B超
The form of receipt for any Customs duties collected for the delayed payment shall be prescribed by ______.
A.The Customs General Administration
B.The Customs Houses
C.The Tariff commission
D.The Ministry of Finance