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【多选题】
复制图层的方法有哪些?
A.
鼠标右键点击图层,有复制图层选项
B.
按住shift,用鼠标拖拽图层,可以复制当前图层
C.
按ctrl+a,可以复制当前图层
D.
按住alt,用鼠标拖拽图层,可以复制当前图层
E.
按ctrl+j,可以复制当前图层
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【判断题】法国科学家帕斯卡(B. Pascal)于1642年发明了齿轮式加减计算器
A.
正确
B.
错误
【单选题】On the afternoon of April 19th, 1587, Sir Francis Dr. Ake led his convoy of 31 ships into the port of Cadiz, (1)_____ the Spanish navy was being prepared to (2)_____ England. The Spanish were (3)_____...
A.
where
B.
when
C.
as
D.
which
【判断题】会计分录是指某项经济业务事项标明其应借应贷账户及其金额的记录,简称分录
A.
正确
B.
错误
【判断题】会计分录是指某项经济业务事项标明其应借应贷账户及其金额的记录,简称分录。
A.
正确
B.
错误
【简答题】会计分录是指某项经济业务事项标明其应借应贷账户及其金额的记录,简称分录。 ( )
【简答题】阅读理解 On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could now read the whole 'map' of the human body: DNA. DNA is something that everybody has, and...
【判断题】Francis Drake was the first Englishman to navigate around the World.
A.
正确
B.
错误
【单选题】On the afternoon of April 19th, 1587, Sir Francis Dr. Aka led his convoy of 31 ships into the port of Cadiz, (1)_____ the Spanish navy was being prepared to (2)_____ England. The Spanish were (3)_____...
A.
where
B.
when
C.
as
D.
which
【单选题】______ is NOT a novel of Francis Scott Fitzgerald.
A.
Tender Is the Night
B.
Anna Christie
C.
The Beautiful and Dammed
D.
The Great Gatsby
【多选题】对肖脱基效应理解正确的是()
A.
灯丝加热电流If和加速电压Ua都对金属中的电子逸出起到助推的作用
B.
在灯丝加热电流If一定的情况下,加速电压越大,逸出的电子就越多
C.
外加速电压Ua的存在是为了消除空间电荷滞留,使热发射现象连续进行
D.
外加速电压Ua的接入并没有影响到金属中热发射电子的数量
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