慢性肺源性心脏病患者提示右心功能不全的主要体征是()
A. 双下肢水肿
B. 肝颈静脉回流征阳性
C. 心脏向左扩大
D. 肺动脉瓣区第二心音(P2)亢进
E. 肝大,触痛阳性
查看答案
You are developing a bonus report for the payroll application to calculate and display the bonus issue to each envelope. Employees with a salary of less than 50000$ earn a bonus of 15% and the employees who earn 50000$ or more earn out 10% bonus. Which type of trigger would you use to conditionally assign a bonus percentage?()
A. Report level trigger.
B. Group filter.
C. Format trigger.
D. None of the above.
每年()期间对团体旅客购票不予优惠。
A. 军运
B. 黄金周
C. 暑运
D. 春运
主板的外部接口有()。
A. CPU接口
B. VGA接口
C. RJ-45接口
D. USB接口
在无线广播系统中,一部收音机可以收听多个不同的电台节目,广播系统采用的信道复用技术是()多路复用。
A. 频分
B. 时分
C. 码分
D. 波分