硒在人体组织与器官中含量相对最高的为()。
A.肝脏
B.肾脏
C.胰脏
D.脂肪
参考答案:B
I saw a woman running toward me in the dark. Before I could recognize who she was, she had run back in the direction ______ she had come.
A.of which
B.from where
C.in which
D.from which
批发零售业总产出,通常称为( )。
A.商品销售总额
B.商品零售总额
C.商品销售利润
D.毛利