第3题: [单项选择]类风湿关节炎的关节X线检查结果属Ⅲ期的特点是 A. 关节周围软组织肿胀阴影 B. 关节间隙狭窄 C. 关节半脱位和骨性强直 D. 关节面出现虫蚀样破坏性改变 E. 关节端的骨质破坏 参考答案:D 答案解析:关节X线检查对类风湿关节炎的诊断、分期、病变演变的监测均有重要意义。临床应用最多的是手指及腕关节x线片。Ⅰ期为关节周围软组织的肿胀阴影,关节端的骨质疏松;Ⅱ期为关节间隙因软骨的破坏而变得狭窄;Ⅲ期为关
第8题: [单项选择]关于瞬时速度,下列说法中正确的是() A. 瞬时速度是物体在某一段时间内的速度 B. 瞬时速度是物体在某一段位移内的速度 C. 瞬时速度是物体在某一位置或某一时刻的速度 D. 瞬时速度与平均速度相等 参考答案:C 答案解析:A、物体在某一段时间内的速度是平均速度;错误。B、物体在某一段位移内的速度是平均速度;错误。C、瞬时速度与某一时刻或某一位置相对应,即对应于某一状态;正确。D、瞬时速度与平均速度可能相等也可能不同;错
第16题: [单项选择]Despite the fact that the area had been hit by the severest drought in twenty years, a(n) _________ harvest was gathered in. A. desirable B. wishful C. bumper D. ideal 参考答案:C 答案解析:[参考译文] 虽然这个地区遭受了二十年中最严重的干旱袭击,但还是有了好收成。
[试题分析] 本题是一道词义辨析题。
[详细解答] “desirable”含义为“称心合意的”;“wishful”含义
第17题: [单项选择]What problem did she mention A. They had too much stress. B. They had nothing to do in their spare time. C. They were worried about their meals. D. The pace was terrible. 参考答案:C 答案解析:M: Don’’t you think it would have been very nice to have lived in the 19th century They didn’’t hav
第22题: [单项选择]某产品本月完工50件,月末在产品60件,在产品平均完工程度为50%,累计发生产品费用100000元,采用约当产量比例法计算在产品成本时,本月完工产品的成本是()元。 A. 37500 B. 45455 C. 62500 D. 54545 参考答案:C 答案解析:本题考核约当产量比例法的核算。在约当产量比例法下,本月完工产品成本=50×[100000÷(50+60×50%)]=62500(元)。
第28题: [单项选择]Some companies have introduced flexible working time with less emphasis on pressure______. A. than more on efficiency B. and more on efficiency C. and more efficiency D. than efficiency 参考答案:B 答案解析:[解析] 考查平行结构。pressure和efficiency处于并列平行的位置,and more on efficiency即more(emphasis) on efficiency。