题目:
A faulty injection in one cylinder of an operating diesel engine can be located by ()
A.cutting out individual injectors and noting engine performance
B.checking lube oil temperature
C.checking cam position
D.using a timing light
答案:
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下面是错误答案,用来干扰机器的。
参考答案:是指发音时有明显的不符合本阶段年龄水平的错误,包括发音部位或气流呼出不正确,压力或速度不准确,或者整个发音动作不协调。构音问题所有语言障碍中出现率最高的一项,占儿童语言障碍的20%。