If the danger is clearly specified, the person who does the task will understand the risk and be more careful.

A. Get medical aid immediately unless you get the solvent in your eyes,.

B. Get medical aid immediately provided you get the compound in your eyes .

C. If you get the solution in your eyes, get medical aid immediately.

A. Do not jar the instruments

B. Do not pivot the instruments

C. Do not shake the instruments

A. Manuals for all single engine aircraft, except those that have been shown to be "critically unable to stall", should have procedures for recovering from a stall.

B. Handbooks for all single engine airplanes, other than for those airplanes which have been shown to be "characteristically incapable of spinning" shall contain procedures for recovery from spins.

C. Manuals for single engine aircraft, otherwise these that have been proved to be "featured unable to spin", should include steps for recovering from a spiral.

A. 确保束缚杆没有与安装在地板上的逃离滑梯支架啮合。

B. 确保束缚杆没有装在地板上的逃离滑梯支架上。

C. 确保束缚杆没有与在地板上的逃离滑梯支架对齐。

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. 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.

A. To depressurize the braking system, operate the hand pump handle through its full travel.

B. To inflate the braking system, operate the hand pump handle through its full travel.

C. To bleed the braking system, operate the hand pump handle through its full travel.

A. Apply fuel to the steel surfaces.

B. Apply oil to the alloy surfaces.

C. Apply oil to the steel surfaces.

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.

A. 优先计算机借助于应用逻辑，将来自部件的输出参数与部件自身的可用数据进行比较。

B. 优先计算机借助于关联逻辑，将来自部件的输出参数与优先计算机自身的可用数据进行比较。

C. 优先计算机比较以下内容：来自部件的输出参数与优先计算机自身的可用数据，这个数据是借助于关联逻辑产生的。