治疗糖尿病的基本措施是
A．应用口服降糖药物
B．预防并发症的发生
C．积极治疗并发症
D．应用胰岛素
E．严格控制饮食
参考答案：E
设二元函数z=arcsin()，求
Software engineering is the study and application of engineering to the （）, development and maintenance of software.
A.research
B.management
C.assembly
D.design
