对中高能X（γ）射线，两种模体等效的条件是（）相等。
A.电子注量
B.电子密度
C.物理密度
D.原子序数
E.原子量
参考答案：B
The nurse is planning care for a female client diagnosed with acute hepatitis A virus (HAV). What’s the primary mode of transmission for HAV
A. Fecal contamination and oral ingestion.B. Exposure to contaminated blood.C. Sexual activity with an infected partner.D. Sharing a contaminated needle or syring
对于凝析油气层的岩屑录井过程中应及时进行（）。
A.描述定名
B.荧光湿照和滴照
C.观察岩屑结构
D.荧光干照
