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【单选题】
用单杠杆式差压变送器测量锅炉水位,若最高和最低水位相差400mm水柱,且参考水位比最高水位高出400mmH2O,在测试中得到: ΔP=- 700mmH2O时,P出=0.02MPa, ΔP=- 500mmH2O时,P出=0.1MPa, 则应____。A.
扭动调零螺钉使挡板离开喷嘴，上移反馈波纹管
B.
扭动调零螺钉使挡板离开喷嘴，下移反馈波纹管
C.
扭动调零螺钉使挡板靠近喷嘴，上移反馈波纹管
D.
扭动调零螺钉使挡板靠近喷嘴，下移反馈波纹管
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下面程序段的运行结果是( )for(i=1;i<=5;)printf("%d",i);i++;< /div>
A.
12345
B.
15
C.
1234
D.
无限循环
【简答题】下面程序段的运行结果是【 】。 Option Base 1 Private Sub swap(a()As InteSer) For I=1 to 10/2 t=a(i) a(i)=a(10-1+1) a(10-1+1)=t Next1 End Sub Private Sub Form_Click() Dim x(10)As Integer For I=1 to 10 x(i)=I*2 Next1 ...
【单选题】Paul began his speech as follows: They called Lou Gehrig the iron horse. This tireless worker played an astounding 2,130 consecutive baseball games even though he suffered 17 hand fractures during tho...
A.
revealing the general purpose
B.
relating the topic to the audience
C.
previewing the body of the speech
D.
stating the importance of the topic
E.
summarizing the central idea
相关题目：
【单选题】下面程序段的运行结果是( )for(i=1;i<=5;)printf("%d",i);i++;< /div>
A.
12345
B.
15
C.
1234
D.
无限循环