管理学题库2022控制工作的类型和原理题库历年考试试题集锦(9AA)

1. [单选题]Which of the following problems may occur if the opening pressure of a fuel injection nozzle is greater than specified by the engine manufacturer?（）

A. The amount of fuel injected will be increased
B. The start of injection will be retarded
C. The nozzle will permit fuel to dribble
D. The spray pattern will be distorted

2. [单选题]神经肌肉传递功能监测中，两刺激电极之间的距离最佳为（）

A. 1.0cm
B. 2.0cm
C. 3.0cm
D. 4.Ocm
E. 5.0cm

3. [单选题]_____是生命的基本特征之一。

A. 遗传和变异
B. 遗传和基因
C. 变异和基因
D. 同化和异化

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