60._________A.and B.or C.nor D.neither

A: The students work hard. B:_____A．So do they.B．So they do.C．So we do.D．Neither do they.

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_______（47）A.and a great deal of food and dinner

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_______（48）A.and a great deal of food and dinner

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_______（49）A.and a great deal of food and dinner

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_______（50）A.and a great deal of food and dinner

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56._________A.if B.whetherC.either D.neither

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设a=2 b=3 c=4 d=5 下列表达式的值是______。3>2*b Or a=c And bc Or c>dA.1B.TrueC.FalseD.-1

答案解析