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小明同学利用标有“4.5mL”的注射器、弹簧测力计、刻度尺等器材测量大气压强的值。实验步骤如下： （1）把注射器的活塞推至注射器筒的底端，然后用橡皮帽堵住注射器的小孔，这样做的目的是 。 如图所示，用细绳拴住注射器活塞，使绳的另一端与弹簧测力计的挂钩相连，然后水平向右慢慢拉动注射器筒，当注射器中的活塞静止时，记下弹簧测力计的示数为8.2N。 （2）用刻度尺测出注射器的全部刻度的长度为6cm，活塞的横截面积为 cm 2 。 （3）测得大气压强的数值为 Pa。（保留二位小数）
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【单选题】Harvey finished ( ) his research paper, but he needed to check it before submitting it to the professor.
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【单选题】Harvey finished his research paper, but he needed to check it before it to the professor.
A.
to type
B.
typed
C.
typing
D.
type
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【单选题】某《英汉辞典》在解释 “bus” 时,列出的义项有1公共汽车2火箭的一级3火车车厢4公共马车。如果按照历史上这些含义出现的先后来编写辞条,那么正确的排序应当是 ( )
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B.
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【单选题】Harvey finished—— his research paper, but he nceded to check it before submitting it to the professor
A.
to type
B.
typed
C.
typing
D.
type
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【单选题】Harvey finished ______ his research paper, but he needed to check it before submitting it to the professor.
A.
to type
B.
typed
C.
type
D.
typing
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【单选题】某《英汉辞典》在解释“bus”时，列出的义项有①公共汽车②火箭的一级③火车车厢④公共马车。如果按照历史上这些含义出现的先后来编写辞条，那么正确的排序应当是（）
A.
①③④②
B.
③②①④
C.
④①③②
D.
④③①②
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【单选题】Harvey finished ______ his research paper, but he needed to check it before submitting it to the professor.
A.
to type
B.
typed
C.
typing
D.
type
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【单选题】Harvey finished ____ his research paper, but he needed to check it before submitting it to the professor.
A.
to tape
B.
typed
C.
typing
D.
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【单选题】Harvey finished( )his research paper, but he needed to check it before submitting it to the professor.
A.
typing
B.
to type
C.
typed
D.
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【单选题】用简单随机抽样(重复抽样)方法抽取样本单位，如果要使抽样平均误差降低50%，则样本容量需扩大到原来的()。
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to type
B.
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【单选题】Harvey finished ______ his research paper, but he needed to check it before submitting it to the professor.
A.
to type
B.
typed
C.
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A.
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【单选题】Harvey finished ______ his research paper, but he needed to check it before submitting it to the professor.
A.
to type
B.
typed
C.
typing
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【单选题】Harvey finished ____ his research paper, but he needed to check it before submitting it to the professor.
A.
to tape
B.
typed
C.
typing
D.
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查看完整题目与答案
【单选题】Harvey finished( )his research paper, but he needed to check it before submitting it to the professor.
A.
typing
B.
to type
C.
typed
D.
type
查看完整题目与答案
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A.
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B.
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C.
4倍
D.
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查看完整题目与答案
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