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【单选题】
女性,57岁,4个月来经常便秘,两天前出现腹部持续疼痛,阵发性加剧,呕吐两次,均含胆汁性胃内容物,约500ml,过去无类似发作史。体检:腹部膨隆,BP130/90mmHg,T38°C,右下腹轻微压痛,腹软,未扪及肿块,肠鸣音进。白细胞计数9X109/L。该病人腹部X线检查最可能出现的影像学变化是A.
多个阶梯状排列的气液平面
B.
口服造影剂后可见充盈缺损
C.
膈下游离气体
D.
孤立、胀大的肠袢且位置较固定
E.
“”充气肠袢
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【单选题】A serious outcome brought out by the shortage of resources is that ______.
A.
many public institutions have to cut down enrollments of students
B.
teachers are not qualified enough for satisfactory performance in classes
C.
some institutions have to reduce the expenses on research
D.
there is keen competition for resources and attention of faculty between public and private institutions
【单选题】A serious outcome brought out by the shortage of resources is that______
A.
many public institutions have to cut down enrollments of students
B.
teachers are not qualified enough for satisfactory performance in classes
C.
some institutions have to reduce the expenses on research
D.
there is keen competition for resources and attention of faculty between public and private
【简答题】HTTP 协议是 的英文缩写。
【单选题】下列叙述错误的是：
A.
A. File 类能够存储文件 不
B.
A. File 类能够读写文件
C.
A. File 类能够建立文件
D.
A. File 类能够获取文件目录信息
【单选题】A serious outcome brought out by the shortage of resources is that______.
A.
many public institutions have to cut down enrollment of students
B.
teachers are not qualified enough for satisfactory performance in classes
C.
some institutions have to reduce the expenses on research
D.
there is competition for resources and attention of faculty between public and private institution
【单选题】下列属于克隆的一项是
A.
将鸡的某个DN段整合到小鼠的DNA分子中
B.
将抗药菌的某基因引入草履虫的细胞内
C.
将小鼠骨髓瘤细胞与经过免疫的脾细胞融合成杂交瘤细胞
D.
将某种瘤细胞在体外培养繁殖成一个细胞系
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