某企业资产总额为250万元，当发生下 * * 笔经济业务后：向银行借款30万元存入银行；用
题型：单项选择题
问题：
某企业资产总额为250万元，当发生下 * * 笔经济业务后：向银行借款30万元存入银行；用银行存款偿还债务10万元；收回应收账款5万元存入银行，其资产总额为（）万元。
A.280
B.270
C.275
D.215
题型：单项选择题
请根据句意从方框中选择合适的动词，并用其适当时态填空，使句子通顺。
小题1:Williams ▲ his students a wonderful speech on Manners last Wednesday.
小题2:The Greens and the Browns ▲ next door to each other for many years.
小题3:Lucy ▲ for London on business in three days.
小题4:—Were you at school when he came to see you?
—Yes, I ▲ a math class.
小题5:Betty will ring me up when she ▲ in Beijing.