单选题
1分
The diesel engine is a type of internal combustion engine which ignites the fuel by injecting it int...
The diesel engine is a type of internal combustion engine which ignites the fuel by injecting it into hot, high pressure air in a ________.
参考答案: D
参考解析: 注:柴油机是一种内燃机,燃油喷射进入燃烧室内高温高压的空气,并被引燃。