选择题：There will be vision phones _______ the end of thi

题目内容：

There will be vision phones _______ the end of this century. A by
B at
C for
D on

参考答案：

I'm enough to know it is going to be a very di

I'm enough to know it is going to be a very difficult situation to compete a

Within two weeks of arrival, all foreigners had to with the local policeA inq

期末，应将那些本期已实现但尚未收到款项的收入编制调整会计分录，记入“应收账款”、“应收利息”等账户的（）A 借方B 贷方C 借方或贷方D 借方和贷方

资本主义生产成本的构成要素包括A 不变资本B 可变资本C 剩余价值D 平均利润

He made ____ to your remarks at the last meetingA progressB moneyC referenceD re