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【简答题】
一患者的超声图像显示于胰腺尾部可见一包膜光整的多房性囊性结构,囊壁较乳头状结节及钙化斑附着,囊腔内透声良好,可见较粗大的高回声光带分隔 最可能的诊断是A.胰腺脓肿 B.胰腺腺瘤 C.胰腺假性囊肿 D.胰腺癌 E.胰腺囊腺瘤 关于该疾病,错误的说法是A.是由导管上皮发生的良性肿瘤 B.可分为浆液性及黏液性两种 C.黏液性有恶变倾向 D.可以行内引流或外引流进行治疗 E.发生癌变时,可有肝脏及脾脏的转移 最需要和该病进行鉴别的是A.胰腺癌伴液化坏死 B.胰腺假性囊肿 C.胃淋巴瘤 D.胰腺周围动脉瘤 E.左肾上腺囊肿
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【单选题】Edward Snowden’s revelations about the inner workings of the National Security Agency demonstrate how in the era of transparency, a single whistleb lower or mole can disrupt a massive organization.
A.
a small burrowing insectivorous mammal with dark velvety fur, a long muzzle, and very small eyes
B.
someone within an organization who anonymously betrays confi dential information
C.
a small, often slightly raised blemish on the skin made dark by a high concentration of melanin
D.
a large solid structure on a shore serving as a pier, breakwater, or causeway
【简答题】某工厂对某产品的产量与单位成本的资料分析后有如下数据: 月     份 1 2 3 4 5 6 产量x千件 2 3 4 3 4 5 甲单位成本y元/件 73 72 71 73 69 68 乙单位成本y元/件 78 74 70 72 66 60 (1)试比较甲乙哪个单位的成本比较稳定. (2)求甲单位成本y与月产量x之间的线性回归方程.(其中已计算得:x 1 y 1 +x 2 y 2 +…x 6 y...
【单选题】间壁式换热器的总传热传热速率 = 总传热系数×传热面积×传热推动力,其中传热推动力是指
A.
两流体的温度差
B.
流体温度与壁温之差
C.
两流体的速度差
D.
同一流体的温度差
【单选题】在换热器中,间壁任一侧的对流传热速率 = 推动力 / 阻力,其中推动力是指( )
A.
冷流体进出口温度差( T 1 -T 2 ) ;
B.
两相流体温度差( T – T ˊ) ;
C.
热流体进出口温度差( T 2 -T 1 ) ;
D.
流体主体温度和管壁温度差( T – Tw W )或( T w – T ˊ)
【单选题】Why does the teacher mention Edward Snowden?
A.
To show he is a lawbreaker
B.
To warn public numerous surveillance programs have been run by NSA
C.
To disclose a unknown fact
D.
To give an example of “whistle blower
【单选题】《关于发布800/900MHz频段射频识别(RFID)技术应用试行规定的通知》规定了中国UHF RFID技术的试用频率为( )。
A.
125KHz
B.
13.56MHz
C.
840-845MHz和920-925MHz
D.
433.92MHz
【简答题】The fact that he introduced so many______________ upon his appointment did not make him very popular with staff.
【单选题】The drink Ann chose was __________.
A.
Iced tea
B.
Long island iced tea
C.
seafood soup
【单选题】消费者的购买决策过程是由认识需求→收集信息→选择评价→______→_____5个阶段组成。
A.
购买决策 付款方式
B.
付款方式 决定购买数量
C.
购买决策 购后感受
D.
决定购买数量 选择品牌
【简答题】Edward Snowden—the fugitive (逃亡者) former U.S.intelce employee —appears to be stuck in Moscow, unable to leave without a valid American passport, according to interviews Sunday with two men who ha...
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