【简答题】用氟离子选择性电极测定F - 时,由于主要干扰来源于OH - ,所以试液的酸度越大,测得的结果越准确。( )
【单选题】在标准化心理测验中是否测量了所要测量的品质的技术指标称作为
【单选题】To Montresor, the fatal weakness of Fortunato is his _______ for his connoisseurship in wine.
【单选题】Although Japan is now an economic giant, it has one vital weakness that it lacks the ______ material necessary for its industry.
【判断题】在城市中的十字路口,由于建筑物遮挡等原因,在很小的距离范围内信号衰减很快,导致通话质量迅速恶化,甚至产生掉话,称之为拐角效应。
【单选题】One weakness of this study may be ______.
A.
h overestimates the level of sociability in the diarists' lives
B.
It underestimates the level of sociability in the diarists' lives
C.
It misinterprets the level of sociability in the diarists' lives
D.
It underrates the level of sociability in the diarists' lives
【判断题】电梯的绳头组合是固定钢丝绳头的部件。常用的绳头组合不锈钢锥套绳头组合和楔块式绳头组合。()