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【单选题】
接地电阻测试仪的额定转速为( )r/min。A.
50
B.
80
C.
100
D.
120
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举一反三
【简答题】Exercise 1: Listen to ten sentences and match them with their Chinese translation
【简答题】( )症状是指能直接表明疾病、确定疾病性质的症状。
【单选题】在定点机中,下列说法错误的是________。
A.
除补码外，原码和反码不能表示-1
B.
+0的原码不等于-0的原码
C.
+0的反码不等于-0的反码
D.
对于相同的机器字长，补码比原码和反码多表示一个负数
【单选题】听力原文：W: It's nearly ten o'clock. Let's listen to the weather forecast. M: Here's the weather forecast. Fog is spreading from the east and it'll affect all areas by mid-night. It'll be heavy in some pl...
A.
There will be heavy fog in all areas.
B.
There will be heavy rain by midnight.
C.
There will be heavy fog in the east.
D.
There will be fog in all areas by midnight.
【简答题】At ten o'clock yesterday morning we_______(listen) to the wireless.
【简答题】Dear Owner, please listen to me, My life is likely to last ten to fif years. Any separation(分离) from you will make me sad. Remember that before you buy me. Give me time to understand what you want...
【单选题】关于定点数和浮点数的说法,下列说法错误的是
A.
在计算机中通常用定点数表示整数和纯小数
B.
浮点数表示的数即是数值的精确值
C.
定点数表示数据的范围有限
D.
用浮点数表示既有整数部分、又有小数部分的实数
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