导言中应包括按主题字母顺序排列的索引。

A.The introduction should be included in an alphabetical index by subject.

B.An alphabetical index by subject is to be included in the introduction.

C.The introduction includes an alphabetical index subject.

正确答案：B

Tighten the turnbuckle until you have the correct tension in the cable.

Do not operate the brakes to decrease the pressure in the accumulators.

The tension in the cables decreases if the temperature increases.

The warning bell and the horn must start and then stop again.

If the wheel temperature increases to more than 177 deg., the core of the fusible plug melts and the tire deflates.

The condition of the radome is very important for its performance.

Obey the safety precautions when you do work with high voltages.

Do the troubleshooting procedure to find the cause of the malfunction.

Adjust the clinometer until the bubble is in the center.

If the shear pin breaks, do an inspection of the towbar.