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【简答题】
在水平木板上铺上粗糙不同的材料 ,小车自斜面顶端由静止开始滑下,比较小车沿水平运动的距离.伽略利、牛顿等科学家都做过类似的实验,并在此基础上分析推导出著名的牛顿第一定律。请回答下面的问题: (1)为了得出科学结论.三次实验中小车每次都从斜面上同一位置放下,使小车运动到斜面底端的速度_________(填相同或不相同) (2)三次实验中,小车在水平面上受到摩擦力最大的是第_____次,这说明小车受到摩擦 力的大小与接触面的 ______________有关 (3)进一步推理可知,若水平绝对光滑(小车不受阻力)则小车会在水平面上做_______运动,该实验运用了 的科学研究方法。
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【单选题】Why does the girl suggest that her father buy a new car, too?
A.
Their current car is in bad shape, and it doesn't look good.
B.
The cell phone's power supply won't work in an older car.
C.
Their car isn't big enough to ride in with all her friends.
【简答题】Why _______that girl__________ (stand)on a hill just outside the town?
【简答题】Why that girl _____ (stand) on the table?
【单选题】某工业企业为增值税一般纳税人,月5日购入原材料并验收入库,4月25日取得的增值税发票注明的开票日为4月18日,企业于5月8日到税务机关认证并通过,则该企业申报抵扣应在
A.
4月份
B.
取得专用发票日起90日
C.
5月份
D.
开票日起90日
【单选题】听力原文：M: Have you seen that girl sitting over there?She looks like the girl whose photo is in the newspaper. W: But it is said that the missing girl had black hair. Her hair is red. I'd rather say. Q: ...
A.
Because she has red hair．
B.
Because she looks like the missing girl．
C.
Because she has black hair．
D.
Because her photo is in the newspaper．
【单选题】The writer had thought the only mason why Fern was married was that the girl ______.
A.
might be French living near the mountain, and from a mountaineer family
B.
would not stop his climbing
C.
perhaps came from French
D.
might live near the mountain
【单选题】某工业企业为增值税一般纳税人,4月5日购入原材料并验收入库,4月25日取得的增值税发票注明的开票日为4月18日,企业于5月8日到税务机关认证并通过,则该企业申报抵扣应在
A.
4月份
B.
取得专用发票日起90日
C.
5月份
D.
开票日起90日
【单选题】某工业企业为增值税一般纳税人企业,2004年4月购入A材料1000千克,增值税专用发票上注明的买价为30 000元,增值税额为5100元,该批A材料在运输途中发生1%的合理损耗,实际验收入库990千克,在入库前发生挑选整理费用300元。该批入库A材料的实际总成本为( )元
A.
29 700
B.
29 997
C.
30 300
D.
35 400
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