在A与n相等时,(P/A,20%,n)和(P/A,30%,n)这两者的大小为( A )。 A.前者比后者大 B.前者比后者小 C.两者相等 D.不一定 32.在工程项目的经济分析中,一般应采用
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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