半导体显示器因其亮度高,耗电量小而被广泛应用在各类数码显示器中。
查看答案
An application connects to a SQL Azure database. The application occasionally loses the connection to the SQL Azure database. You need to recommend an approach for reliably completing data access operations. What should you recommend?()
A. Use Microsoft ADNET connection pooling.
B. Pass exceptions to the user interface layer.
C. Implement a retry policy in the data access layer.
D. Begin a transaction before each data access operation.
女,41岁,头痛,头晕,走路不稳1个月余,MRI检查,最可能的诊断为()
A. 听神经瘤
B. 脑膜瘤
C. 三叉神经瘤
D. 胆脂瘤
E. 神经纤维瘤
绝缘工具受潮后,应及时进行干燥,并在试验合格后方可继续使用。()
A. 正确
B. 错误
挖掘作业时,机械挖掘设备距空中导线最小距离()
A. 低压0.5米,高压1米
B. 低压1米,高压2米
C. 低压2米,高压4米
D. 低压4米,高压8米