Drawing the fastener into the hole by torqueing the nut is not allowed.

A. Do not let the flame become solid.

B. Never let the foam become liquid.

C. Do not let the foam become solid.

A. 技术文本常常包含很长的词组，这些词组在一个句子中具有一种词性的功能。

B. 技术文件常常由很长的词汇构成，这些词在句子中的词性只有一种。

C. 技术文件常常包括长词组，在同一句子中这些词的功能是一种词性。

A. Use only the approved forms of verbs and adjectives.

B. Use only the permitted forms of verbs and adverbs.

C. Use only the applicable forms of adverbs and adjectives.

A. 做步骤1到4以确保没有剪切载荷施加到端头上。

B. 做步骤1到4以确保没有径向载荷施加到轴上。

C. 做步骤1到4以确保没有轴向载荷施加到杆上。

A. Put a plug on the open end of each pipe.

B. On the opening of each pipe, put a cover.

C. Put a cover on the loose end of the pipe.

A. If the tire temperature is unusually high, open the valve.

B. If the tyre pressure is insufficiently high, open the valve.

C. If the tire pressure is unusually high, open the valve.

A. When it is unlikely that the temperature decreases to -20 ℃, remove the batteries.

B. If it is possible that the temperature will decrease to -20 ℃, remove the batteries.

C. If it is possible that the temperature will decrease to -20 ℃, cut the cells.

A. These tests should only use the equipment or facilities installed on the aircraft. These tests should be able to perform by the flight crews.

B. These tests should not use the special equipment or facilities that are not installed on the aircraft. These tests should be similar to the tests performed by the flight crews.

C. These tests should require the equipment or facilities installed on the aircraft rather than the special ones and should be replaceable by the tests accomplished by the flight crews.

A. 通过最少两个全循环操作副翼，并操作至其最大行程。

B. 至少完整操作副翼两个全循环至其最大行程。

C. 操作副翼最小两个单位，至其最大行程。

A. The work must be completed according to the boss instructions.

B. The work must be done in compliance with the instructions in the Maintenance Manual.

C. The work must be done according to the Maintenance Manual ahead of time.