How does Peter go to school A: By bus. B: On foot. C: By bik

公钥基础设施简称为() A: PKI B: MPI C: BIK D: CIA

What does Alice’s father want to buy for her A: A sweater. B: A watch. C: A red bik

What does Jane want to have A: She won’t lend him her bike. B: She will lend him. her bike. C: She won’t borrow his bik