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【单选题】
疲劳极限是材料能经受无限次( )而不发生疲劳断裂的最大应力。
A.
极限应力
B.
过载应力
C.
应力循环
D.
应力松弛
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举一反三
【单选题】00溺水者倒水以______为度。
A.
倒出口、咽、气管内的水
B.
倒出腹内的水
C.
倒出口、咽内的水
【简答题】A.John was disappointed at his math score. B.John did better than he thought he was able to. C.John didn't pass, although he had tried his best. D.John got an excellent score, which was unexpected.
【判断题】决定人的价值观的是社会制度。()
A.
正确
B.
错误
【判断题】度量是把要度量的量与标准量进行比较的过程
A.
正确
B.
错误
【简答题】A.John was disappointed at his math score. B.John did better than he thought he was able to. C.John didn't pass, although he had tried his best. D.John got an excellent score, which was unexpected.
【单选题】( )不是简单的数据在机器和机器之间的传输,是机器与机器之间的一种智能化 、交互式的通信。
A.
PV4
B.
NFC
C.
NGI
D.
M2M
【单选题】________ a teacher, John thinks that his main duty is to help the students to become better learners. [     ]
A.
As
B.
By
C.
About
【多选题】新时代的爱国主义主要体现在下列哪些方面?( )
A.
坚持爱国主义和社会主义相统一。
B.
维护祖国统一和民族团结。
C.
尊重和传承中华民族历史和文化。
D.
必须坚持立足民族又面向世界。
【判断题】价值观和价值观体系是决定人行为的心理基础。()
A.
正确
B.
错误
【单选题】G+菌与G-菌细胞壁肽聚糖结构的主要区别在于
A.
聚糖骨架
B.
四肽侧链
C.
五肽交联桥
D.
β-1,4糖苷键
E.
N-乙酰葡糖胺与N-乙酰胞壁酸的排列顺序
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