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问题
单项选择题
()最主要特征是有一个用特殊弹性材料做的脚芯,称为“龙骨”。
A.SACH脚
B.单轴脚
C.万向脚
D.储能脚
答案
参考答案:D
填空题
选词填空。
He She It in on under
1. —Where is the panda?
—
is
the ball.
2. —Where is the boy?
—
is
the box.
3. —Where is the cat?
—
is
the car.
4. —Where is the girl?
—
is sitting
the chair.
5. —Where is the woman?
—
is
the elephant.
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问答题 简答题
说明不同谷物硬度不同的原因?
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