报检单位必须在检验检疫机构注册登记，报检时填写登记号；报检员在报检时应该出示报检员证。( )
参考答案：对
——My family usually go hiking for vacation. I like hiking, but I want to try something different this year.
—— ____________
A．Let’s go!
B．Cheer up!
C．Like what?
D．Take care!
计算题：某电厂建成一个设计容量为4500m3的汽轮机油罐，其室外最高气温为40℃，今购买了3840吨hu-20油，其ρ20=0.8700g/cm3，问该油罐能否将这些油装完？
