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【单选题】
执行查询时,将通过对话框提示用户输入查询条件的是A.
选择查询
B.
交叉表查询
C.
参数查询
D.
操作查询
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反馈参考答案：
举一反三
【简答题】A．according to B．owing to C．due t° D．with respect to
【简答题】大学生与教师交往中应该注意哪些礼仪？
【简答题】Discuss with your classmates whether there are any problems in the following memo and how you can improve them. Then contrast your improved memo and wit the original ones. To: David Smith Form: Lucy B...
【单选题】—Lucy,the boy was frightened by the terrible noise from the next room.
A.
ake him________it's quiet，I think.
B.
when
C.
where
D.
what
E.
before
【单选题】It is unfortunate that, owing to lack of money, these experiments must now ______ before the objective has been achieved.
A.
transferred
B.
terminated
C.
testified
D.
transformed
【多选题】对相控触发电路,必须满足的要求有
A.
触发电路的触发信号必须在晶闸管门极伏安特性的可靠触发区
B.
触发电路必须输出正、负两种触发脉冲
C.
脉发脉冲应具有一定的宽度，前沿要尽可能陡
D.
触发脉冲应满足主电路晶闸管的工作要求
E.
触发脉冲与主电路晶闸管必须同步
F.
触发电路应保证变流电路各元件触发脉冲的对称性
G.
触发电路应采取电磁兼容的技术措施
【简答题】大学生与同学交往中应该注意哪些礼仪？
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