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【简答题】
物理层的特性包括______、_________、_________、_________。
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【单选题】I think watching TV is very . You can really learn a lot.
A.
unusual
B.
relaxing
C.
educational
【单选题】(2013·高考天津卷)I think watching TV every evening is a waste of time—there are________ meaningful things to do.
A.
less
B.
more
C.
the least
D.
the most
【简答题】已知行列式的第一列的元素为1,4,-3,2,第二列元素的代数余子式为2,3,4, x 问x=
【简答题】I think watching TV is a ______ (浪费)of money.
【简答题】I think watching TV is (boring)thing at home.
【简答题】四阶行列式的第二行元素分别为 ;第四行对应元素的代数余子式值分别为 ,则 的值是____。
【单选题】I think watching TV every evening is a waste of time---there are _______ things to do.
A.
meaningful
B.
meaningless
C.
more meaningful
D.
less meaningless