煤气中毒较重，出现失去知觉，吐白沫时可采取（）措施。
A. 使之躺下，把腿垫高，使血液回流
B. 适当保暖，以防受凉
C. 松开衣领腰带，使之呼吸通畅
D. 使中毒者吸氧气
查看答案
Which command will list all subsystem resources on a server？（）
A. lssrc a
B. lssrc g
C. lssrc l
D. lssrc -
Which three statements correctly describe the features of the I/O calibration process?（）
A. Only one I/O calibration process can run at a time.
B. It automates the resource allocation for the Automated Maintenance Tasks.
C. It improves the performance of the performance-critical sessions while running.
D. It can be used to estimate the maximum number of I/Os and maximum latency time for the system.
E. The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRU
用黄素分光光度法测定水中硼时，应严格控制显色条件，姜黄素与硼结合形成玫瑰花青苷，需要在无水条件下进行，有水残存会使络合物颜色强度增加。
A. 正确
B. 错误
微信支付 
支付宝支付