输入植物、植物产品和其他检疫物，经检疫发现有植物危险性病、虫、杂草的，应当通知货主或者其代理人作除害、退回或者销毁处理。( )
参考答案：对
金属、塑料门窗玻璃密封条安装不得有（）。
A、接缝
B、卷边、脱槽
C、滑动
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.
（52）是（）
A.device
B.protocol
C.network
D.controller
