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【单选题】
重新启动Windows，而越过“自检”过程的启动方式是（）。A.
按RESET
B.
关、开电源
C.
按Ctrl—Break
D.
按Ctrl-Alt-Del
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举一反三
【单选题】A multimeter with a range of 50 V and a minimum scale of 1 V was applied to measure the voltage of a resistance in a circuit. The accuracy class of the multimeter was 1. The measured voltages were 20....
A.
21.4±1 V
B.
21.4±0.6 V
C.
21..4±0.4 V
D.
21.4±0.5 V
【单选题】What is the difference of the language of a child of four from that of his parents?
A.
The vowel sounds.
B.
The grammar.
C.
The style.
D.
The vocabulary.
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