____ ____ his bag?
—What do you think of Alice?
—She is very friendly. She always _______ the other students in her class.
下列关于工业生产的说法正确的是( )
已知等差数列{an}的前n项和为Sn=n2+pn+q(p,q∈R),且a2,a3,a5成等比数列.
纪录片《大国崛起》中有一句解说词:”它是第一个迈进现代社会的国家,在18世纪和19世纪的时候,它是世界发展的领头羊“,这只领头羊是指( )