The state of the newborn is free of any____________. A: falsehood B: knowledge C: impurity D: desire

中国大学MOOC: When impurity atoms replace the host atoms, it is called a/an solid solution

‍扩散机理可分为哪些？‎ A: vacancy diffusion B: self-diffusion C: impurity diffusion D: interstitial diffusion

When impurity atoms replace the host atoms, it is called a/an solid solution A: Substitutional B: Vacancy C: Interstitial D: None of the avove

‍When impurity atoms replace the host atoms, it is called a/an solid solution‏ A: Substitutional B: Vacancy C: Interstitial D: None of the avove

Itis stipulated in the export contract that "Chinese indica rice: moisture 14%, impurity 1%, imperfect grain 7%". This kind of regulation is accurate and reasonable, so it is widely used. ()

Ourcompany exported some kinds of agriculturalproducts to Germany, it is stipulated in the contract that:“Moisture11 % Max,Impurity3% Max” .But we sent the sample to buyer before concluded, andinform the buyer by fax that the goods we delivered is similar to the sample.When the goods arrived inGermany,the buyer inspected the goods and found the quality of goods is lower than thesample, and of course they raise a claim for USD 600. Question:Do you think the buyer’s claim is reasonable, why? (合理／不合理）

函数的定义域是/ananas/latex/p/1132315: (-∞, -3)∪(-3, +∞)|(-∞, -3)∪(-3, 3)∪(3, +∞)|(-∞, -3)∪(3, +∞)|(-∞, 3)∪(3, +∞)

智慧职教: 按自然数的乘法按定义计算3×5. 解   由定义5知3x5=(3x4) 3 =[(3x3) 3] 3 ={[(3x2) 3] 3} 3 ={{[(3x1) 3] 3} 3} 3 ={{[(3 3) 3] 3} 3} ={[(6 3) 3] 3} =(9 3) 3 =12 3=15 上述计算是（   ）的

3√3—/3√3/