想阅读电子期刊,可利用下面哪种电子资源()
A.超星图书馆
B.龙源电子期刊数据库
C.网上报告厅
参考答案:B
已知甲、乙两数的和是20.58,甲数是7.86,乙数是多少?
The agreement indicates that the two companies will ________ with each other again.[ ]
A. team up
B. turn up
C. look up
D. pick up