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【单选题】
纸和纸板是按定量或厚度来区分的,下面区分正确的是()
A.
定量小于 100 或厚度在 0.2mm 以下的统称为纸
B.
定量小于 200 或厚度在 0.lmm 以下的统称为纸
C.
定量大于 100 或厚度在 0.1mm 以上的统称为纸板
D.
定量大于 200 或厚度在 0.2mm 以上的统称为纸板
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小于两船船长之和的一半
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【简答题】医学文献检索课前预习,请简要回答1、2、3题并练习第4题 1、列举你最熟悉的检索工具,两到三种。 2、你在检索文献时感到最困难的是什么? 3、描述一下你印象最深的一次检索经历,包括检索目的、过程、问题、结果 4、接触以下检索工具,熟悉基本功能和界面 中国知网、维普期刊、万方医学网
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【单选题】2 U6_3_1_2.mp3:
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D.
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【单选题】B2-U6_3_1_3.mp3: ( )
A.
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She thinks her fatheroffered too many suggestionsabout her future.
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A.
She is watching her diet.
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She is not eating healthily
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She is losing some weight
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查看完整题目与答案
【单选题】试验表明,船吸作用明显加剧的两船间距约为:
A.
小于两船船长之和
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小于两船船长之和的一半
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【单选题】脉冲信号发生器的延迟线的作用是( )
A.
主脉冲有一定的间歇时间
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输出的主脉冲对于同步脉冲有一段延迟时间
C.
与同步信号同步
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以上均不是
查看完整题目与答案
【单选题】B2-U6_3_1_2.mp3: ( )
A.
He has fun doing assembling work.
B.
He bakes bread for a big family.
C.
He will work in an office soon.
D.
He works to support his family.
查看完整题目与答案
【单选题】减小偶然误差方法( )
A.
空白试验
B.
对照试验
C.
多次测量取平均值
D.
回收试验
查看完整题目与答案
【单选题】试验表明,船吸作用明显加剧的两船间距约为__。
A.
小于两船船长之和的一半
B.
小于两船船宽之和的一半
C.
小于两船船长之和
D.
小于两船船宽之和
查看完整题目与答案
【单选题】B2-U6_3_1_1.mp3: ( )
A.
He no longer workes in a supermarket
B.
He changes jobs quite frequently.
C.
He quit his job three weeks ago.
D.
He is selling beer in a store.
查看完整题目与答案