818.once designed and approved, the establishment of thorough maintenance
procedures is a must.

A. 　拆卸保留的封严。

B. 　移动残留的防渗漏剂。

C. 　清除剩余的密封胶。

A. 　 If an AC circuit consists of resistance only,the value of the impedance is the same as the resistance.

B. 　 If an AC circuit consists of impedance only, the value of the capacitance is the same as the impedance.

C. 　 If an DC circuit has capacitance only,the value of the resistance is the same as the capacitance.

A. 　把螺帽拧松 1 圈

A. 　 When the temperature is below zero, depressurize the water system.

B. 　 If the temperature drops below zero, deflate the water system.

C. 　 If the temperature decreases to less than zero, drain the water system.

A. 　Send the results of the audit to the quality department.

A. 　用米尺来衡量金属盒的容识。

B. 　评测金属规则的维度,来作长远的分级。

C. 　用一个带有毫米刻度的金属尺来测量尺寸。

A. 　 Maintenances Practices"
inspection/check.

B. 　 Maintenance Practices"

C. 　 Maintenance Practices"
include servicing removal/installation, adjustment/test,
cleaning/painting. Approved repairs should be located after the Troubleshooting Section.

A. 　 Before you move the spoilers, tell all persons to get off the wings.

B. 　 Before telling all persons to get off the wings, you move the ailerons

C. 　 Before you move the ailerons, tell all persons to get off the wings.

A. 　如果测试失败,应该根据困难决定修理的内容。

B. 　 如果测试结果不合格,应该根据故障决定修理的深度。

C. 　 如果测试结果失效,应该根据故障决定修理的难度。

A. 　三台计算机收集数据,与系统参数起放在连接 到显示器组件的数据链路上

B. 　三台计算机从系统中更正数据和参数,将它们放在连接到显示器组件的数据链路上

C. 　三台计算机收集系统数据和参数,并通过数据链接将它们一起传送给显示组件