A、 Clean the elastic surfaces that are transparent.
B、 Clean the plastic surfaces that are not transparent.
C、 Clean the plastic surfaces that are not vague.
答案：B
A、 Clean the elastic surfaces that are transparent.
B、 Clean the plastic surfaces that are not transparent.
C、 Clean the plastic surfaces that are not vague.
答案：B
A. Each electrical system is identified by a code.
B. Each code of electrical system is identified.
C. Each system is identified by an electrical code.
解析：这道题考察的是英语句子的结构和逻辑关系。正确答案是A: Each electrical system is identified by a code. 这句话的意思是每个电气系统都有一个特定的代码来识别它。在英语中，主语（each electrical system）在句子中通常位于句子的开头，然后是谓语动词（is identified），接着是其他成分。在这个句子中，谓语动词是"identified"，表示识别或辨认的意思，而介词短语"by a code"说明了是通过一个代码来识别电气系统。
举个生动的例子来帮助理解：想象一下你的家里有很多不同的电器，比如电视、冰箱、洗衣机等等，每个电器都有一个独特的电气系统。为了方便管理和维护这些电器，你给每个电器都分配了一个特定的代码，这样你就可以通过这个代码来识别和区分不同的电器。这就好比每个电器都有一个身份证号码一样，通过这个号码可以准确地找到对应的电器。所以，每个电气系统都有一个特定的代码来识别它。
A. The aircrft is taxiing to China on the runway.
B. The aircrft is running to China on the ramp.
C. A Chinese aircrft is taxiing on the runway.
A. Operator is in charge of the maintenance of the handbook.
B. The handbook should be kept current by the operator.
C. The operator should store the handbook in a proper status.
A. In order to set the configuration and operate the system, the operator uses an external joystick and control panel.
B. An external joystick and control panel is used to make the configuration and operate the system.
C. To operate an external joystick and control panel for the configuration and the system operation.
A. The factory＇s policy of providing consulting remains unchanged.
B. The factory has been maintaining technical and component support within the policy scope.
C. The factory＇s policy on providing technical and component support has changed from the past.
A. Utilizing an airplane as intended by the manufacturer and sound inspection and maintenance practices is basis that assures the airplane remains airworthy and safe to operate.
B. One of the basis for assuring the airplane remains airworthy and safe to operate is sound inspection and maintenance practices and forms.
C. Utilizing an airplane as intended by the manufacturer is the only basis for assuring the airplane remains airworthy and safe to operate.
A. There is no influence on your eyes for hydraulic fluid.
B. Hydraulic fluid has no effect on your eyes.
C. Hydraulic fluid can cause eye injury.
A. The accuracy of the adjustment can vary.
B. The accuracy of the adjustment can be fixed.
C. The precision of the adjustment can be prevented .
A. Those instructions necessary to park or store the aircraft in normal or abnormal conditions such as with engines removed, aircraft damaged, etc.neither short-term nor long-term.
B. Instructions required for parking or storing the aircraft under normal or abnormal conditions, such as engine removal, aircraft damage, etc., which are used for short-term or long-term under extreme weather conditions.
C. Those instructions necessary to park or store the aircraft in normal or abnormal conditions such as with engines removed, aircraft damaged, etc.either short-term or long-term.
A. Do a thorough check of the hydraulic system.
B. Do a check of the hydraulic system carefully.
C. Do a check of the hydraulic system again.
