981. To make or become larger or higher in value

A. 手册建议你在气流良好的区域制备混合物。

B. 制造商建议你在气流良好的区域制备混合物。

C. 制造商强调你在气流良好的区域制备混合物。

A. 一百三十二是一个整数的例子。

B. 三十二分之一是一个分数的例子。

C. 一分三十二秒是一个剪辑的片段。

A. If the airframe manufacturer modifies the component manufacturer＇s text or description by any means, he shall use his own headmaster.

B. If the airframe manufacturer changes the component manufacturer＇s text or illustration in any way, he shall apply his own masthead.

C. If the airframe manufacturer changes the component manufacturer＇s text or illustration in one way, he shall modify his own masthead.

A. This is the maximum portion of flammable vapors in air if the portion is bigger, when an ignition source touched the gas, it would cause the fire to be diffused.

B. This is the minimum volume of flammable vapors. If the volume is lower, when the gas contacted with an ignition source. the fire would not come out.

C. This is the minimum density of flammable vapors in air. if the density was lower, when an ignition source touched the gas, it would not cause the spread of flame.

A. Leave the solution for one hour, then stir it up.

B. Do not use the solution unless you shake it for one hour.

C. After agitation, allow the solution to stand for one hour.

A. 保持安静以避免错过信号的声音。

B. 保持安静以避免混淆声音的信号

C. 保持安静以避免丢失声音信号。

A. Return lines need not be shown in entirety unless necessary to the understanding of the system.

B. An understanding of the system is necessary for the return line to be displayed in its entirety.

C. The return line does not need to be shown in its entirety unless an understanding of the entire system is required.

A. 用于指示低压的压力计使用更灵活的管子,更容易展开和卷绕

B. 用于指示较低压力的仪表使用更易弯曲的管子,线圈更易散开和缠绕。

C. 用于指示较低压力的压力表使用的软管更加柔软,可以随时解开和盘绕。

A. Both master schematic diagrams and system function of complex systems should be for simplicity of presentation and understandability.

B. Complex systems should be divided into system function but not overall master schematic diagrams for homeliness and a better understanding of presentation.

C. For simplicity of presentation and understandability, complex systems should be divided into either system function or overall master schematic diagrams.

A. The power required to run an engine in flight, at the lowest speed that will ensure satisfactory engine operation and airplane handling system.

B. The power required to run an engine in flight, at the lowest speed that will ensure satisfactory engine operation and airplane handling characteristics.

C. The power required to run an engine in flight, at the lowest speed that will ensure correct engine operation and airplane handling characteristics.