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【简答题】
在△ABC中,已知边c=10,又知 cosA cosB = b a = 4 3 ,求边a、b 的长.
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【简答题】如图,一个长方体长8厘米,宽6厘米,高4厘米.在这个长方体的一个角上挖掉了一个棱长2厘米的正方体.剩下部分的体积是______立方厘米,表面积是______平方厘米.
【单选题】根据以下资料,回答下列各题。According to China Maritime Code, unless notice of loss or damage is given in writing by the consignee to the carrier at the time of delivery of the goods by the ( 46), such delivery sha...
A.
carrier to the consignee
B.
shipper to the consignee
C.
consignee to the carrier
D.
consignee to the shipper
【单选题】The sports meeting will continue ____ it rains this afternoon. [     ]
A.
if
B.
until
C.
unless
D.
as soon as
【简答题】A. 细胞壁 %0A%09%09p%20%7B%20margin-bottom%3A%200.25cm%3B%20direction%3A%20ltr%3B%20line-height%3A%20115%25%3B%20text-align%3A%20justify%3B%20orphans%3A%200%3B%20widows%3A%200%3B%20background%3A%20transp...
【简答题】如图,三个几何体,一个是长方体、一个是直三棱柱,一个是过圆柱上下底面圆心切下圆柱的四分之一部分,这三个几何体的主视图和俯视图是相同的正方形,则它们的体积之比为 .
【简答题】下图是个工具箱,下半部分是一个宽20cm,长40cm,高25cm的长方体,上半部分是圆柱的一半,请计算这个工具箱的体积和表面积.
【简答题】如图,一个长方体长 ,宽 ,高 .从这个长方体的一个角上挖掉一个棱长 的正方体,剩下部分的体积是____ ,剩下部分的表面积是____ .
【单选题】The sports meeting will continue _______it rains this afternoon.
A.
if
B.
since
C.
though
D.
unless
【单选题】Our class will go to the National Park next Sunday ——________ it rains, of course.
A.
when
B.
unless
C.
for
D.
whether
【简答题】According to China Maritime Code, unless notice of loss or damage is given in writing by the consignee to the carrier at the time of delivery of the goods by the (1) , such delivery shall be deemed to...
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