Install safety wire to the knurled retaining ring and the clogging indicator body.

A. You can adjust the volume control.

B. You can adjust the value control.

C. You can override the voice control.

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 warning 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.

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.

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. The dictionary does not include verbs sorted by trades because there are too many.

B. The dictionary excludes majors because there are too many verbs.

C. The dictionary does not include technical verbs because there are too many.

A. Make an estimate of the necessary quantity.

B. Evaluate on the quantity available.

C. Approximate the scale of the quality.

A. During this period,if you use economy power settings, the engine may be damaged.

B. The use of economy power settings during this period may be detrimental to the engine life.

C. The use of economy power settings during this period may reproduce the engine life.

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. 对所有维修过的产品进行全面检查。

B. 对所有维修过的产品进行仔细检查。

C. 对所有维修过的产品进行初始检查。

A. 灯泡带来了一盏灯。

B. 这灯发出微弱的光。

C. 这灯发出了亮光。