搜题请搜索小程序“爱下问搜题”
问题 解答题
260-0=72÷8=302×4=131×0=
450-70=102×4=700×4=93+40=
398×5=21×5≈102×4≈510×9≈
答案

260-0=260

72÷8=9

302×4=1208

131×0=0

450-70=380

102×4=408

700×4=2800

93+40=133

398×5=1990

21×5≈100

102×4≈400

510×9≈4500

填空题

根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。

Here is a ___小题1:______. A man and a boy are in it. ___小题2:___ are they? Let me tell you. The man is Mr. White, and the boy’s name is Bill. He’s the man’s son. Now __小题3:____are in Bill’s bedroom. We can see some __小题4:_____ books in the desk. And on the bed is a shirt. It ’s Bill’s. His pants are___小题5:____ his shirt.
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单项选择题

人参

A．有碳酸钙钟乳体
B．薄壁细胞中有橙皮苷结晶
C．既含草酸钙方晶，又含草酸钙簇晶
D．薄壁细胞中有晶角锐利的草酸钙簇晶
E．薄壁细胞中含有针晶
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