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I'd like to go swimming ____ the water is not too cold.
A.forB.unlessC.ifD.whether

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I'd like to go swimming ____ the water is not too cold.
A.forB.unlessC.ifD.whether

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I'd like to go swimming ____ the water is not too cold.
A.forB.unlessC.ifD.whether

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To their disappointment, nobody ______ was found under the ruins.
A.livingB.liveC.livelyD.alive

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To their disappointment, nobody ______ was found under the ruins.
A.livingB.liveC.livelyD.alive

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To their disappointment, nobody ______ was found under the ruins.
A.livingB.liveC.livelyD.alive

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下列物体中质量约为2kg的是                                         (    )
A.两个鸡蛋B.一只老母鸡C.一头大绵羊D.一张课桌

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一瓶矿泉水放入冰箱结冰后,下列物理量不发生改变的是                 (    )
A.体积B.密度C.质量D.比热容

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小聪放学回家,发现爷爷做生意用的杆秤锤碰掉了一小块,他用这个秤称出1kg黄豆,则这些黄豆的真实质量应                                             (    )
A.小于1kgB.大于1kgC.等于1kgD.无法判断

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小朗同学打乒乓球时,不小心将球踩瘪了,但没有破裂。对于该球内的气体没有发生变化的物理量是                                                     (   )
A.质量B.密度C.压强D.体积

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