高度增加,最佳爬升角速度(Vx)(),最佳爬升率速度(Vy)()。 A.增大,减小

题型:单项选择题

问题:

高度增加,最佳爬升角速度(Vx)(),最佳爬升率速度(Vy)()。

A.增大,减小

B.减小,增大

C.增大,增大

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题型:单项选择题

Jack is a little schoolboy. He lives in a small town in England. His father works in a factory in London. One day his mother   1  him to post a letter to his father.
Jack walked down the street. He didn’t see a letter box on the street. But he really   2  a basket with a sign on it. The sign said, “PUT LITTER IN THIS BASKET”. “I can read,” thought Jack, but he couldn’t   3  the word “letter” right.
Jack dropped the letter in the basket. Then he ran  4  to tell his mother about the basket.
“Oh, no, child!” said his mother, “You put the letter in a basket. That litter basket is   5  old paper and other useless things.”
“Oh,”said Jack,“does the   6  on the basket mean that?”
“Yes, it does,”said his mother,“The word is‘litter’not‘letter’. Now get the letter and post it.”
When Jack got there, a man was putting the old   7  in a truck.
“Stop!”shouted Jack, and he began to tell the man about the letter.
The man helped him to look for the letter. After a while they   8  it.
Then Jack put the   9  in the letter box. He said,“  10  don’t they tell us all the words when we first go to school? Then things like that can’t happen.”
小题1:
A.saidB.toldC.spokeD.talked
小题2:
A.sawB.tookC.broughtD.watched
小题3:
A.readB.lookC.spellD.give
小题4:
A.awayB.outC.inD.from,
小题5:
A.toB.onC.withD.for
小题6:
A.letterB.wordC.sentenceD.sound
小题7:
A.litterB.basketC.boxD.paper
小题8:
A.heardB.finishedC.workedD.got
小题9:
A.paperB.basketC.singD.letter
小题10:
A.HowB.WhatC.WhyD.When
题型:单项选择题

2012年,山东省积极开展“学雷锋,做山东好人”等活动,以推动本省的思想道德建设。为响应这一活动,我们应该

①认真践行社会主义荣辱观       ②追求更高的思想道德目标

③优先提高自我的科学文化修养   ④积极参加社会公益活动

A.②③④

B.①②④

C.①③④

D.①②③

题型:单项选择题

My father told me he was soon going to visit ________ USA.

A. the        B. a         C. an          D. /

题型:单项选择题

主排程复核要项是什么?

题型:单项选择题

混凝土浇筑施工不包括()。

A.石子加工

B.浇筑前的准备工作

C.入仓铺料

D.平仓、振捣

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