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[单选] Why is it important for fuel oil tanks not to be topped off at the inner bottom level when loading on a cold day?()

A . Increased viscosity of the product needs higher loading pressure, which increases the chances of a spill
B . Air pockets may cause the fuel to bubble out of the ullage hole
C . The temperature rise of the fuel will cause an overflow
D . Fueling valve may become stuck closed and cause the fuel oil to spill before the valve can be opened

下列有关人Rh血型系统的说法,正确的是:() Rh阴性个体的血清中存在Rh抗原的天然抗体。 Rh阴性受血者在输入Rh阳性血液后,会发生凝集反应。 Rh抗体可透过母亲胎盘,作用于胎儿的红细胞。 Rh阴性母亲一旦怀有Rh阳性胎儿,胎儿则由于红细胞的凝集而死亡。 Each inert gas system must be designed to supply the cargo tanks with a gas,or mixture of gasses,that has an oxygen content by volume of(). 5% or less。 10% or less。 15% or less。 20% or le。 解释水产养殖投喂饵料的“四定法则”。 京东商城在2007年前花费的广告费是()。 10万。 50万。 100万。 未花钱。 刘强东曾经为了节省开支,在公司睡了()年地板。 A.一年。 B.两年。 C.三年。 D.从来没有。 Why is it important for fuel oil tanks not to be topped off at the inner bottom level when loading on a cold day?()
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