My new shoes cost me ￥300. The price was ______ that of the last pair I bought a month ago.
A. twice as much as
B. twice more than
C. as twice
D. as much as twice
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下列关于队列的叙述中正确的是______。
A. 在队列中只能满插入数据
B. 在队列中只能删除数据
C. 队列是先进先出的线性表
D. 队列是先进线性表后出的
Every attention must be paid to him, lest he ______ that he is inferior to my other guests.
A. would feel
B. feels
C. felt
D. feel
因不可抗力使合同不能履行时( )。
A. 一方提出解除合同需经对方同意
B. 双方就能解除合同
C. 需双方协商一致才能解除合同
D. 当事人一方可单方提出解除合同
Which of the following was most important in the development of the fast packets（）
A. The increased demand for the transportation of all kinds of cargo.
B. The increase in the number of people who wanted to go to Europe after the war of 1812.
C. The increase in the number of people who wanted to go to America.
D. The increased volume of mail.
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