89、lf the components fall, permanent damage can occur.

A. 　在词典中给出的形容词都是原形,如果有比较级和最高级,以括号标示出。

B. 　词典中每个被认可的形容词都列入基本表格,如适用,将其比较和最高级形式放在一起。

C. 　词典中每个被认可的形容词都以原形给出,如适用,将加入比较级和最高级表格。

A. 　 Pull out the circuit breaker.

B. 　 Push in the circuit breaker.

C. 　 Remove the circuit breaker.

A. 　防腐有很多方法。

B. 　腐蚀可能有很多原因。

C. 　修正的方法有很多。

A. 　小心地取出配平盖板内的备份磁带。

B. 　小心地从胶带上拆除装饰盖。

C. 　小心地移除调整片,用其他的带子盖上。

A. 　如果安装了某一个设备,那么要说明安装它的重要性

B. 　如果安装了其中一个设备,则说明它是否是必需的设备

C. 　如果安装了两个设备,需要说明其必要性

A. 　 Two systems can be energized at a time.

B. 　 Two systems can be engaged at the same time.

C. 　 Two systems can be adopted separately.

A. 　在维护和修理期间支撑飞机所需的说明,包括支撑材料和设备、外形尺寸、支撑位置等信息

B. 　这些必要的说明是支撑飞机维修和修理期间使用的,包括顶升材料和设备,大概尺寸,顶升位置等信息

C. 　在维护和修理期间支撑飞机所需的文件,包括支撑材料和设备、大概尺寸、支撑位置等信息

A. 　 Make sure that the quality of fuel in the reservoir is not more than 500 liters.

B. 　 Make sure that the quantity of fuel in the tank is not more than 500 liters.

C. 　 Make sure that the quality of oil in the tank is not more than 500 liters.

A. 　在左边空白处用黑色垂直线或用“手形指示”来标记确定插图的修改部分。

B. 　用与修改部分相对的左边空白处的黑色垂直线或用“手形指示”来确定插图的修改。

C. 　用左边空白处的黑色水平方向直线或用“手形指示”来确定插图的修改。

A. 　 A warning is an operating procedure, inspection, repair or maintenance practice, which if not correctly followed, could result in personal injury, or loss of life.

B. 　 The warming information that contains operational check,inspection, repair or maintenance tasks shall be properly followed, or injury to persons or loss of life can be caused.

C. 　 Warning information contains operating procedure, inspection, repair or maintenance practice that will cause injury to persons or loss of life.