【名词&注释】
多边形(polygon)、是什么(what is)
[单选题]下面各角能成为某多边形的内角和的是（ ）
A. 430°-
B. 4343°-
C. 4320° -
D. 4360°
查看答案&解析
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举一反三：
[单选题]17．
A. shining
B. falling
C. running
D. drying
[单选题]29． Gina’s father _________-to see thrillers．
A. likes
B. doesn’ t like
C. wants
D. often goes
[单选题]_____
A. interesting
B. exciting
C. excellent
D. encouraging
[单选题]13．
A. usually
B. never
C. often
D. sometimes
[单选题]集气瓶中装满某气体，可能是下列气体中的一种：①二氧化碳②一氧化碳③空气④氮气。将燃着的木条伸入瓶中，火焰立即熄灭，则该瓶气体可能是（ ）
A. ①或②
B. ②或③
C. ①或④
D. ③或④
[单选题]15． —When were you born? ．—I was born ________the morning of May 7th，1995．
A. in
B. on
C. at
D. during
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