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【单选题】
对某个无的邻接矩阵来说，( ) 。A.
第i行上的非零元素个数和第i列的非零元素个数一定相等。
B.
矩阵中非零元素个数等于图中的边数
C.
其广度优先遍历和深度优先遍历算法的空间复杂度均为 O(n)。
D.
矩阵中非行的行数等于图中的顶点数
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举一反三
【单选题】―What does the sign over there say? ―No student ______ bring drinks into the computer room.
A.
will
B.
may
C.
shall
D.
must
【单选题】It can be inferred from the passage that______.
A.
many of the students require smaller classes than usual in the institutions
B.
most college admissions officials cannot predict how many students will commit to enrolling in their institutions by May 1 this year
C.
many of the students are increasingly applying to multiple institutions to make their choices by May 1 this year
D.
in typical years, most colleges require students to apply and commit to their institutions
【简答题】2 请回答下列问题。( 本题也是作业题 ) What are the main dishes today? Which does the passenger choose? When would the passenger like to have fruit? What kind of drinks does the flight attendant offer?(至少写三种) Which co...
【单选题】－What does the sign over there say? －“No person _______ bring drinks into the student computer pool.”
A.
will
B.
shall
C.
may
D.
must
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