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【单选题】
用于设置表格背景颜色属性的是( )A.
background
B.
bgcolor
C.
bordercolor
D.
backgroundcolor
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反馈参考答案：
举一反三
【简答题】函数 的间断点是(答案直接填写数字,有多个答案的话用分号;隔开)
【简答题】Who invented the printing press? In which year was it invented? The printing press was invented by ___________ in _________.
【单选题】Press printing techniques first appeared in ____.
A.
Germany
B.
Canada
C.
the United States
D.
China
【单选题】The word one in paragraph 2 refers to
A.
clay tablet
B.
scroll
C.
book
D.
printing press
【简答题】If you asked people what the most important invention has been,many would say the printing press. Others _1_ say the wheel.But even though it’s_2_whether the appearance of the printing press affected ...
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