造成内燃机轴瓦烧坏原因之一是润滑油道堵塞,()得不到润滑。
参考答案:曲轴瓦
To make members of a team perform better,the trainer first of all has to know their _____ and weaknesses.
A.strengths
B.benefits
C.techniques
D.values
中度营养不良患儿热量供给开始应为()
A.40~60kcal
B.60~80kcal
C.80~100kcal
D.100~120kcal
E.120~140kcal