魏某,男,29岁。饮食不节之后突然出现腹痛腹泻,便稀,伴白色黏液,肛门灼热,腹痛,口渴喜冷饮,小便短赤,舌红苔黄腻,脉濡数。针对患者具体病情,还应该在主穴基础上加用()。
A. 肝俞、太冲
B. 中脘、气海
C. 下脘、梁门
D. 内庭、曲池
E. 脾俞、太白
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电动试压泵属于()。
A. 离心泵
B. 往复式柱塞泵
C. 射流泵
D. 隔膜泵
A small company would like help in identifying an apparent system performance problem on its internal mail server, especially to determine peak hour usage. What would be the first step in identifying the problem?()
A. cd /var/spool/cron/crontabs,uncomment the lines in the adm file, in order to start gathering statistics.
B. cd /var/spool/cron/crontabs; uncomment the lines in the sys file, in order to start gathering statistics.
C. cd /usr/lib/cron/; vi the adm file; startsrc -s sadc
D. cd /usr/lib/cron/; vi the sys file; startsrc -s sadc
白色糠疹的好发部位是()
A. 躯体及四肢近端
B. 颜面部
C. 头皮躯体及四肢伸侧
D. 小腿
E. 头颈部
转电线圈的工作频率一般为()。
A. (300~3000)Hz
B. (300~3400)Hz
C. (480~3000)Hz
D. (480~3400)Hz