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【单选题】
S7-1200 1214 PLC,可以扩展________个I/O模块。A.
3
B.
6
C.
8
D.
10
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反馈参考答案：
举一反三
【简答题】肠道中氨的主要来源有______和______，同时也是血氨的______。
【单选题】When daylight savings time is kept，the time of tide and current calculations must be adjusted.One way of doing this is to ().
A.
Add one hour to the times listed under the reference stations
B.
Subtract one hour from the time differences listed for the subordinate stations
C.
Apply no correction as the times in the reference stations are adjusted for daylight savings time
D.
Add 15° to the standard meridian when calculating the time difference
【简答题】肠道中氨的来源有______和______。
【单选题】Then _____ of that time when he was cowboy .
A.
. Comes the memory
B.
. came the memory C. the memory comes D . the memory came
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