题目内容

含水率4%的砂100克，其中干砂重克。

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称河砂500 g，烘干至恒重时质量为494 g，此河砂的含水率为。

Task 4 Directions:The following is a list of terms related to human resources. After reading it, you are required to find the items equivalent to those given in Chinese in the table below. Then you should mark the corresponding letters in the order of the numbered blanks, 53 through 57, on the Answer Sheet.A---------- Annual leave J ------------- Immediate family memberB---------- Sick leave K--------------Quality managementC---------- Background screening L--------------Risk managementD----------Big data M--------------Team buildingE---------- Child labor N--------------Training needs analysisF-----------Contract of service O---------------Labor marketG---------- Employee assessment P---------------Job classificationH---------- Flexible work arrangements Q---------------Job evaluationI ----------- Job analysisExamples: ( J ) 直系亲属 ( H ) 弹性工作安排

肾单位由下列哪项构成

A. 肾小体和肾小管
B. 肾小体和集合管系
C. 泌尿小管和肾小管
D. 肾小管和集合管系
E. 肾小囊和肾小管

肾间质细胞

A. 呈星形，有细长突起
B. 细胞器较多
C. 有丰富的嗜银颗粒
D. 分泌前列腺素
E. 形成纤维和基质