运行途中应检查（）表和（）表的指数是否符合要求，检查发动机和底盘有无（）和（）。
参考答案：水温、气压；异响、异常气味
四冲程柴油机气阀重叠角的位置是在（）。
A．上止点前后
B．下止点前后
C．上止点前
D．排气结束后
Multipurpose Internet Mail Extension (MIME) is a (1) document messaging standard in the Internet enviroment, with MIME, users can send (2) Email messages that include audio, video, graphices, and text to any other user of a TCP/IP network. Richtext information can also be (3) into messages. It defines the fonts, formats, and (4) features of a document so the document can be easily (5) on many different types of systems.
3（）
A．incorporated
B．filled
C．stored
D．filed
