【简答题】患者,男性.32岁,反复发作口腔溃疡1年,近半年阴茎发生溃疡2次,检查:颊、下唇、舌背黏膜各见一约绿豆大小的溃疡,圆形,表面有黄色假膜,周围红晕,手背静脉注射处可见小脓疱。此患者可能诊断为A、药疹 B、复发性口腔溃疡 C、白塞病 D、干燥综合征 E、多形红斑 该病属于A、自身免疫病 B、细菌感染 C、病毒感染 D、传染性疾病 E、变态反应性疾病 该患者在体检时,除外哪项体征,其余可能出现A、口腔溃...
【单选题】听力原文:M: This truck looks like what I need, but I'm worried about maintenance. For us it'll have to operate for long periods of time in very cold temperatures. W: We have several models that are especi...
A.
He has a fairly large collection of quality trucks.
B.
He needs a vehicle to be used in harsh weather.
C.
He has had his truck adapted for cold temperatures.
D.
He does routine truck maintenance for the woman.
【单选题】我国高扬程提水灌溉主要集中于( )流域。
【简答题】黑龙江、辽河流域水产区是我国重要的 鱼类产区A. 冷水性