A、 Obey the safety precautions when you do work with high voltages.
B、 When working with high resistances, you should follow the safety precautions.
C、 The safety precautions are optional in an environment with high voltages.
答案:A
A、 Obey the safety precautions when you do work with high voltages.
B、 When working with high resistances, you should follow the safety precautions.
C、 The safety precautions are optional in an environment with high voltages.
答案:A
A. 使用耗材时要小心。
B. 小心使用易燃品。
C. 使用化学材料要小心。
A. The turbines are used to extract energy from the exhaust gases and are coupled to the crankshaft.
B. The turbines can drive energy to exhaust gas and connects crankshaft.
C. The turbines can extract energy from the exhaust gases and drive the crankshaft.
A. 你可以根据单词在句子中的功能和意思了解它的位置,因为动词和形容词的位置不同。
B. 因为动词和形容词在句子中的位置不同,你可以根据单词的作用和意思来确定它的位置。
C. 单词在句子中的位置可以告诉你它的功能以及它的意思,因为动词和形容词有不同的位置。
A. Push the applicable button to eject the disk drive.
B. Press the applicable key to pop out the tape actuator.
C. Compress the applicable button to jet the disk actuator.
A. 发动机附件冷却系统用于发动机舱及附件通风,包括阀门、管路、引射泵、涡流发生器等部件。
B. 发动机辅助冷却系统能帮助发动机及附件通风,包括阀门、波导设备、喷射泵、扰流器等组件。
C. 发动机辅助冷却系统用于发动机舱、活门、管路、引射泵、涡流发生器等附件通风。
A. That portion of the system is used to perform the cranking portion of the starting operation.
B. That portion of the system is used to perform the igniting portion of the starting operation.
C. That portion of the system is used to perform the cranking portion of the igniting operation.
A. You can calibrate all the compass systems at the same time.
B. You can fix all the compass systems at the same time.
C. You can calibrate all the magnetic needle systems at the same time.
A. 如果错差超过3度,则要改装指南针。
B. 如果误差超过3度,则要校准罗盘。
C. 如果角度超过3度,则要调整圆规。
A. 这些FAA适航指令提供了关于持续适航要求的具体信息,用于所有者/运营人。
B. 这些FAA咨询通告为制造商和所有者/运营人提供了关于持续适航要求的具体信息。
C. 这些FAA咨询通告提供了关于初始适航要求的具体信息,用于所有者/运营人。
A. Check wash basin drains, water tap and its lines for leakage.
B. Inspect the washing sink, faucet and its pipe for leakage.
C. Examine the washing hand drain port, tap and the line for crack.