The alphanumeric display shows only voltage and frequency when you select one of these pushbutton.

A. The safety procedures are supplied by the manufacturer.

B. Safety procedures are to be supplied to the manufacturer.

C. Safety procedures are provided for manufacturers to follow.

A. 为了便于阅读和交叉索引，图解说明、图形和表格实际上应以垂直布局呈现。

B. 为了便于阅读和相互参考，插图、图形和表格如果可行的话，应以垂直布局呈现。

C. 为了便于阅读和相互对照，示意图、插图和表格在实际情况下应以垂直布局呈现。

A. 使用听筒侧面的按钮来调节音量。

B. 使用手机旁边的按键来适应体积。

C. 为了加大容量，使用手机侧面的旋钮。

A. If a supply shutoff valve was closed within five minutes, no maintenance performance is needed and shutoff periods are not accumulated.

B. Maintenance action is not necessary and shutoff periods are not calculated unless the shutoff valve was closed for less than five minutes.

C. When a supply shutoff valve was closed for five minutes, maintenance action is hardly required and shutoff duration are not included.

A. Maximum altitude loss during stall recovery is approximately 800 feet.

B. Maximum altimeter loss during spin recovery is about 800 feet.

C. Maximum weight loss during stall recovery is nearly 800 feet.

A. Use talcum powder to find external leaks.

B. Use titanium powder to detect external leaks.

C. Use limestone powder to examine internal leaks.

A. 残留在零件上的溶剂会导致腐蚀。

B. 残留在零件上的油液会导致腐蚀。

C. 残留在零件上的溶剂会导致穿孔。

A. 螺旋桨恒速机构故障。

B. 螺旋桨恒速机构被挡住了。

C. 螺旋桨恒速传动机构不在这个位置。

A. There are electrically-operated valves in the ejection lines to the two engine pumps.

B. There are electronic-operated valves in the ejection lines to the two engine pumps.

C. There are electrically-operated valves in the suction lines to the two engine pumps.

A. STE是一种活的语言，需要用户的反馈来不断改进。

B. STE是一种生活的语言，需要用户的培育来不断验证。

C. STE是一种活的语言，需要用户的输入来不断应用。