Mechanical practice of grammar teaching includes: substitution drills &________________ .
A. practical drills
B. transformation drills
C. information drills
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Listen to the tape and decide whether (A)or (B) should be matching the answer.1. Isn't this a good prize?
A. Yes, did you win it?
B. Yes, it's really cheap.
Listen to the tape and decide wheteher thefollwoing word you hear are the same or different.
A. 对
B. 错
将十六进制数177转换成十进制数是( )。
A. 256
B. 128
C. 127
D. 375
时至今日,计算机仍采用“存储程序”原理,原理的提出者是_____。
A. 摩尔
B. 比尔·盖茨
C. 冯·诺依曼
D. 图灵