描述静态数据结构的概念模式是()。
A、E-R图
B、DFD
C、结构图
D、框图
参考答案:A
The great millionaire gave away all his fortune to the charity and lived a simple life, ________.[ ]
A.happy and content
B.happily and content
C.happily and peaceful
D.happy and peace
下述哪种疾病属于风湿性疾病的范畴()
A.系统性红斑狼疮
B.干燥综合征
C.骨关节炎
D.特发性血小板减少性紫癜
E.强直性脊柱炎