1511. If fumes come through, do the emergency procedure

A. If you decide not to replace the current component, monitor its temperature for most of 15 cycles.

B. If your decision is not to replace the unit, monitor its temperature for a minimum of 15 cycles.

C. If you decide not to replace the existing unit, watch its temperature for at least 15 cycles.

A. 给计算机备份文件,常规时期

B. 定期备份计算机文件

C. 定期清理计算机文件

A. Misunderstanding will occur if a word is only understood by a large amount of people in a special technical area.

B. If a word is only known by quite a small amount of people in a special technical field, there will be communication interference.

C. If a word is only understood by a very small number of people in a specific technical area, it will cause interference in communication.

A. The computer gets this data from five sensors.

B. The computer gets this date from five sheets.

C. The computer gets this data from five source.

A. 2毫米的价值是允许的。

B. 允许使用2毫米的价值。

C. 允许使用2毫米的值。

A. If you have no doubt about the serviceability of the unit perform a standard serviceability test.

B. If you have no knowledge about the serviceability of the unit do a standard serviceability test.

C. If there are doubts about the serviceability of the unit, carry out a standard serviceability test.

A. 用张力计测量钢索的张力到正确的值

B. 用张力计把钢索的张力校准到正确的值

C. 用张力计将电缆的张力校准到正确的值。

A. Each door has flexible seals at its structure interface which protect the metal interfaces from damage by the airflow.

B. Each door has flexible seals at its structure interface which protect the metal interfaces from no damage by the airflow.

C. Each door has formalist seals at its structure interface which protect the metal interfaces from damage by the airflow.

A. 对于仪表近进着陆,下滑道偏离用来建立足够的离地高度。

B. 对于目视近进着陆,下滑道偏离用来建立足够的进近高度。

C. 对于仪表近进着陆,航向道偏离用来建立足够的离地高度。

A. Do not make the pressure became less than (or more than)20 psi.

B. Do not let the pressure become less than (or more than)20 psi.

C. Do not let the pressure close less than (or more than) 20 psi.