初中毕业学业考试结束后，要对考试成绩进行繁重的数据分析与统计。近年来，永州市实行

吲哚试验阳性的细菌是因为它能分解（）

A.葡萄糖

B.靛基质（吲哚）

C.色氨酸

D.枸橼酸盐

E.尿素酶

计划生育优质服务的主要任务是什么？

MIDI enables people to use (51) computers and electronic musical instruments. There are actually three components to MIDI, the communications " (52) ", the Hardware Interface and a distribution (53) called "Standard MIDI Files". In the context of the WWW, the most interesting component is the (54) Format. In principle, MIDI files contain sequences of MIDI Protocol messages. However, when MIDI Protocol (55) are stored in MIDI files, the events are also time-stamped for playback in the proper sequence. Music delivered by MIDI files is the most common use of MIDI today.

（54）是（）

A.Video

B.Faxmail

C.Graphic

D.Audio

根据企业的经营管理状况、报关情况、遵守法律法规情况，海关将从事加工贸易的企业分为A、B、C、D四种类别，实施动态分类管理。 ( )

金融机构未按规定履行客户身份识别义务，情节严重的，处（）罚款，并对直接负责的董事、高级管理人员和其他直接责任人员，处（）罚款。