经审批同意贷款的，由信贷员应及时通知借款人。借款人应在接到通知后（）天内签订借款合同及配套的担保合同，办妥相关手续。
参考答案：7
一个优秀的抽样方案应该满足哪些原则？
—Where was your brother at this time last night?
—He was writing an e-mail _______ I was watching TV at home. [ ]
A. as soon as
B. after
C. until
D. while
