不属于结缔组织结构特点的是（）。
A、细胞外基质多
B、多数细胞无极性
C、细胞散在分布
D、细胞间无细胞连接
参考答案：D
Which of the following statements regarding allocating trades is TRUE.9 It is permissible under the Standards to allocate trades:()
A. on a pro-rata basis over all suitable accounts.
B. based upon compensation arrangements.
C. based upon client relationships with the firm.
关于治疗缺铁性贫血，正确的是（）
A.目的是使血红蛋白恢复正常
B.维生素B12可增强疗效
C.多饮茶水
D.小剂量开始，血红蛋白正常后再用药2～3个月
E.禁用酸性药物
