第17题: [单项选择]分析法中的P代表的是() A. 政治和法律环境 B. 经济环境 C. 技术环境 D. 社会环境 参考答案:A
第18题: [单项选择]The waltz and the tango seem to be out of fashion today. Things like the twist and jerk seem to be ______ young people are really interested in. A. all that about B. about that all C. about all that D. all about that 参考答案:C
第22题: [单项选择]The longer the ignition delay period occurs in a diesel engine, the (). A. less fuel will enter the cylinder B. lower will be cylinder compression temperatures C. more complete will be fuel combustion D. more rapid will be the rise in combustion pressure 参考答案:D