Which two statements accurately describe a role?（）
A role can be given to a maximum of 1000 users.
B. A user can have access to a maximum of 10 roles.
C. A role can have a maximum of 100 privileges contained in it.
D. Privileges are given to a role by using the CREATE ROLE statement.
E. A role is a named group of related privileges that can be granted to the user.
F. A user can have access to several roles, and several users can be assigned the same role.
工程建设法律关系中，建设工程合同的主体一般只能是（）
A. 公民
B. 法人
C. 个体工商户
D. 其他社会组织
党员如果没有正当理由，连续（）不参加党的组织生活，或不交纳党费、或不做党分配的工作，就被认为是自行脱党。
A. 1个月
B. 3个月
C. 6个月
D. 1年
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