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问题 判断题

炉料的粒度影响矿石的还原速度。

答案

参考答案：对

填空题
从方框中选择恰当的句子完成下面的对话。
A: Excuse me, where is Seven Star Park, please? I’m a stranger here.
B:          小题1:        
A: How far is it from here?
B:           小题2:         
A: Well, how can I get there?
B:          小题3:          
A: Which bus should I take?
B:          小题4:        
A: Can it take me right there?
B:          小题5:        
A: Thank you very much. See you later.
B: See you.
A. Either No. 11 bus or No. 18 bus is OK.
B. How long does it take?
C. It’s about two kilometers away.
D. Yes, the park is just next to the bus stop.
E. Oh, it’s a little far from here.
F. I think you’d better take a bus.
G. The bus ride usually takes about 25 minutes.
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单项选择题

MIDI enables people to use (61) computers and electronic musical instruments. There are actually three components to M1DI, the communications " (62) ", the Hardware Interface and a distribution (63) called "Standard MIDI Files". In the context of the WWW, the most interesting component is the (64) Format. In principle, MIDI files contain sequences of MIDI Protocol messages. However, when MIDI Protocol (65) are stored in MID! 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.

A．format

B．text

C．wave

D．center
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