第32题: [单项选择]Blow-off of the relief valves of the main cylinders during operation indicates (). A. the cylinder cover is cracked B. the injector holes is clogged C. the cams are not properly set D. fuel pump is leaking 参考答案:C
第33题: [单项选择]扁桃体上端的黏膜皱襞称为:() A. 扁桃体被膜 B. 腭咽弓 C. 腭舌弓 D. 三角襞 E. 半月襞 参考答案:E