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【单选题】
患者40岁，排便后肛门外剧烈疼痛，并出现一触痛性明显的肿块，最可能的诊断是A.
内痔脱出嵌顿
B.
直肠息肉脱出
C.
肛周脓肿
D.
血栓性外痔
E.
肛裂并前哨痔
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皮皮学刷刷变学霸
举一反三
【单选题】对于理想和信念的关系，错误的理解是（）
A.
理想和信念是互不相干的两种意识形式
B.
理想是信念的根据和前提
C.
信念是实现理想的重要保证
D.
理想和信念总是如影随形，相互依存
【单选题】We think that it's love, generosity and perseverance _____ make the world _____ it is today. [ ]
A.
what; that
B.
that; what
C.
which; what
D.
which; that
【简答题】在横线里填上“＞”、“＜”或“=”． ee 2 ______2 e v 8 e2 ______ 2 右 右 8 ______ 9 2v 5 7 ______ 7 9 ．
【单选题】The mode of transceivers which can receive and transmit signals in the same time are called ( ).
A.
half duplex mode
B.
full duplex mode
C.
single mode
D.
uplink
【简答题】A．The era during which the railroad was the dominant mode of transportation. B．The time during which mail was delivered by horse. C．The point at which airmail began to constitute the bulk of United St...
【简答题】钳工常用的刀具材料有高速钢和（）两大类。
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