皮皮学,免费搜题
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【单选题】
上消化道出血时,为寻找出血的病因,首选的辅助检查方法是
A.
胃镜检查
B.
上消化道钡餐
C.
胃液分析
D.
CT
E.
选择性动脉造影
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【判断题】蒸馏操作是单向传质过程。
A.
正确
B.
错误
【单选题】When asked why he is so successful in his life, Rong Yiren said honesty is the ___________ cause of his success. [     ]
A.
fundamental
B.
unbelievable
C.
obvious
D.
genuine
【单选题】既能消食又能健脾,善消各种饮食积滞的药物是
A.
麦芽
B.
山楂
C.
六神曲
D.
莱菔子
E.
鸡内金
【判断题】计算机的性能完全取决于CPU的性能
A.
正确
B.
错误
【单选题】如果储蓄曲线是直线,则:
A.
MPS必为常数
B.
APS必为常数
C.
APC必为常数
D.
MPC必然会上升
【单选题】This passage talks mainly about ______.
A.
Why the umbrella was so popular in Europe
B.
When and how the umbrella was invented
C.
the history and use of umbrella
D.
the development of the umbrella
【单选题】As individuals, we are inherently more bruited than a community. Although we can consult books and friends and critics, in the end we are limited to our own single perspectives. We are only one person...
A.
are inevitably more narrow-minded and less resourceful
B.
are able to develop lasting friendship within a limited circle
C.
can focus on one history or one aspect of knowledge
D.
must decide whether or not to take advantage of the diversity
【单选题】传感器的测量结果相对于 PLC 是( )
A.
输出信号
B.
根据连接方法确定
C.
输入信号
D.
不确定
【单选题】根据《汽车发动机缸体与气缸盖修理技术条件》(GB3801-83)的技术要求,气缸体上平面50X50(mm)测量范围内平面度误差应不大于()mm。
A.
0.01
B.
0.04
C.
0.05
D.
0.10
【单选题】在计算机的软硬件关系中,以下叙述正确的是( )。
A.
硬件系统不可用软件代替
B.
计算机性能完全取决于CPU
C.
软件不可用硬件代替
D.
软件和硬件的界线不是绝对的,有时功能是等效的
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