问题
单项选择题
比重比水小的东西会浮在水面上,比重比水大的物体则会沉入水底。木头与铁块绑在一起后沉到了水底,由此可知()。
A.木头与铁块的比重都比水大
B.该木头与铁块的平均密度比水大
C.木头的比重比水小
D.铁的比重比水大
答案
参考答案:B
比重比水小的东西会浮在水面上,比重比水大的物体则会沉入水底。木头与铁块绑在一起后沉到了水底,由此可知()。
A.木头与铁块的比重都比水大
B.该木头与铁块的平均密度比水大
C.木头的比重比水小
D.铁的比重比水大
参考答案:B
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5. Does Bill like action movies? _____________________________________________ 6. Does Tom like cartoons? _____________________________________________ 7. Does Dave like action movies? _____________________________________________ 8. What kind of movies does Jane like? _____________________________________________ 9. Does Jane like the same kind of movies as her brother Bill? _____________________________________________ 10. Do Tom and Jane both like cartoons? _____________________________________________ |