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【简答题】
A．The couple cook the dishes and the children help them. B．The husband does the cooking and the wife serves as the waitress. C．The mother does the cooking while the father and the children wait on the guests. D．A hired cook prepares the dishes and the family members serve the guests.
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举一反三
【简答题】4 )同步发电机的定子电动势是怎样产生的?与变压器二次电压有什么不同?
【单选题】You should treat him (in) the way ____ suits him most.
A.
that
B.
in which
C.
/
D.
why
【单选题】Walt Whitman, whose ______________ established him as the most popular American poet of the 19 th century.
A.
Go Down, Moses
B.
Leaves of Grass
C.
As I Lay Dying
D.
Song of Myself
【简答题】4 )同步发电机的定子电动势是怎样产生的?与变压器二次电压有什么不同?
【简答题】下列钢号中,(
)是合金渗碳钢,( )是合金调质钢。A. 20 B. 65Mn C. 20CrMnTi D. 45 E. 40Cr
【单选题】逻辑函数F=((AB'+C)D+E)B的反函数是
A.
F’=((AB'+C)D+E)B
B.
F‘=((A‘B+C’)D‘+E’)B‘
C.
F'=((A'+B)C'+D')E'+B'
D.
F'=((A+B')C+D)E+B
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