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【判断题】
GB/T1804-2000 对线性尺寸的一般公差规定了四个公差等级,从高到低依次为:f(精密级)、m(中等级)、c(粗糙级)、v(最粗级)。这4个公差等级相当于IT12、IT14、IT16和IT17 。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】(2016真题-实65)患儿女,足月儿,出生后1分钟评估患儿情况:躯干皮肤色红,四肢较紫,心率120次/分、哭声响亮、肌张力好,呼吸45次/分。该足月儿最终的 Apgar评分是
A.
6分
B.
7分
C.
8分
D.
9分
E.
10分
【简答题】Direction: Complete the following sentence with a proper word from your textbook on P. 74. Change the form if necessary. There'd be no telling how John would (v.) to such news as this.
【简答题】Direction: Complete the following sentence with a proper word from your textbook on P. 74. Change the form if necessary. I have just spent a holiday there and would (v.) it to anyone.
【单选题】What is the BEST conductor of electricity ________.
A.
Carbon dioxide
B.
Distilled water
C.
Fresh water
D.
Salt water
【简答题】Direction: Complete the following sentence with a proper word from your textbook on P. 74. Change the form if necessary. Unless we make a move soon, we shall not be able to (v.) our plan.
【简答题】Direction: Complete the following sentence with a proper word from your textbook on P. 106. Change the form if necessary. It is interesting to their situation and ours. (v.)
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