【判断题】恒压交流铁心磁路空气气隙增大时磁通不变。
【简答题】Answer the following questions with the information contained in Text A. 1 What is the main idea of the essay? 2 What is the author ’ s attitude towards f ame? 3 What does an artist have to do to stay...
【简答题】1) Does man tend to become less dependent on nature with the rapid development of society? Why or why not? 2) What does the author think about the present relationship between man and nature? 3) What’...
【简答题】What does the las tparagraph suggest in terms ofthe author ’ s attitude?
【简答题】缓冲溶液能够对溶液的酸碱度起一定的稳定作用,它多由弱酸及其 _ __ 组成。此外,浓度较高的 溶液 也有一定的缓冲作用;但其中随溶液被稀释其 pH 将显著变化的是 。
【单选题】患者,男性,48岁,5天前,无明显诱因出现右眼视力突然下降,无眼红、眼痛。未进行治疗,无好转。既往右眼视力正常,全身无糖尿病、高血压及其他病史。检查:Vod:Fc/30cm,Vos:1.0,双眼眼压正常。右眼眼前节检查未见明显异常,玻璃体混浊(+++),视网膜窥不见。左眼检查大致正常。B超检查显示右眼玻璃体混浊,后极部视网膜光滑。
患者最可能的诊断是()