An ()of the post's fundamental role in the creation of the United States requires a ittle knowledge of the problems faced by the colonies at that time.
A.authorized
B.rudimentary
C.appreciation
D.debuted
A、authorized
A.authorized
B.rudimentary
C.appreciation
D.debuted
A、authorized
A.A. The post office is not far.
B.B. What letters do you post?
C.C. There' s a post office at the end of St. Beac
A、Parallelism is used in this sentence.
B、Five same structures “something+to do” are used here to stress the variety of things to do.
C、Five same structures “to do”are used as post modifiers to modify the nouns in front of them separately.
D、“ever-increasing” this expression is used to show the author’s negative feeling about the petty things.
A. was an independent country
B. was a smail island in the Pacific Ocean
C. belonged to India
D. was one of the British colonies
Mr. Smith did not say anything, but walked out of the living-room and went to his study(书房). Mrs. Smith was very angry __24__ him, but did not say anything either.
Then a minute later he came back with a box full of Christmas cards. All of them had addresses and stamps on them.
"These __25__ last year," he said, "I forgot to post them."
21)、
A.with
B.are from
C.while
D.to send
E.for our
22)、
A.with
B.are from
C.while
D.to send
E.for our
23)、
A.with
B.are from
C.while
D.to send
E.for our
24)、
A.with
B.are from
C.while
D.to send
E.for our
25)、
A.with
B.are from
C.while
D.to send
E.for our
A 、 F(s)的零点就是开环传递函数的极点;
B 、 F(s)的极点就是开环传递函数的极点;
C 、 F(s)的零点数与极点数相同;
D 、 F(s)的零点就是闭环传递函数的极点。
A.F(s)的零点就是开环传递函数的极点
B.F(s)的极点就是开环传递函数的极点
C.F(s)的零点数与极点数相同
D.F(s)的零点就是闭环传递函数的极点
行为的理论模式用函数关系式表达为()
A.B=f(S·P)
B.B=f(P·E)
C.B=f(S·E)
D.B=f(P·M)
阅读以下程序,填写运行结果()。def f(n): s=str(n) result='' for i in range(0,len(s)): result=s[i]+result return result print(f(345))