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【判断题】
在开漏工作模式,I/O口在应用时一定外接上拉电阻。( )A.
正确
B.
错误
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【单选题】You didn't put on more clothes otherwise you______cold.
A.
wouldn't have caught
B.
wouldn't catch
C.
can't catch
D.
can't have caught
【单选题】关于小儿心率教的叙述，正确的是
A.
新生儿正常心率车为140-150次分
B.
1岁以内小儿正常心率为130-140次/分
C.
4-7岁小儿正常心率为100-120次/分
D.
2-3岁小儿正常心率为120-130次/分
E.
8-14岁小儿正常心率为70-90次份
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