外单位到生产区域内动火时，动火工作票由（）签发和审批，也可由外单位和设备运维管理单位实行“双签发”。
参考答案：设备运维管理单位
符合阴虚火旺心悸的是（）
A.心悸时作时止、舌红、苔黄腻
B.心悸不安、舌质紫暗
C.心悸眩晕、胸闷痞满或水肿
D.心悸气短、面色无华
E.心悸易惊、舌红、苔少或无
Because Web servers axe platform and application (71) , they can send or request data from legacy or external applications including databases. All replies, once converted into (72) . mark-up language, can then be transmitted to a (73) .Used in this way, Intranets can (74) lower desktop support costs, easy links with legacy applications and databases and, (75) all, ease of use.
（72）处填（）。
A．ciphertext
B．hypertext
C．plaintext
D．supertext
