UC知道数学 英语有题不会做!!急问?
来源：百度知道 编辑：UC知道 时间：2024/05/22 23:53:41
英语:1 选择下列单词,用适当的形式填空.
use,come back, blow out,tell a lie
thank you for, in fact,stand up,fell down,
lost the game, have a wonderful party
a. After you made a silent wish, you could _______the candles.
b. Don't________to the teachers. Yuo must tell them the truth.
c. _________visting me.I am glad to see you
d. I want to come to you party________,but I am too busy.So I can't come
e. He often_________a pen________write letters.
f. When she_______,I want to give her a surprise.
g. Thy boy often talks in class, so his teacher asks him_______
in class.
h. A girl_________from a tall tree last night.
i. We piayed basketball against NO.1 Middle school.
At last we________.
2 选用方框中适当适当动词或词组并用其正确形式填空
recite,take,have, play,lost,miss, biow out,look like,be,get hurt
a. Look! They_______photos over there.
b. The little boy could________a lot of poems when he was ten years
use,come back, blow out,tell a lie
thank you for, in fact,stand up,fell down,
lost the game, have a wonderful party
a. After you made a silent wish, you could _______the candles.
b. Don't________to the teachers. Yuo must tell them the truth.
c. _________visting me.I am glad to see you
d. I want to come to you party________,but I am too busy.So I can't come
e. He often_________a pen________write letters.
f. When she_______,I want to give her a surprise.
g. Thy boy often talks in class, so his teacher asks him_______
in class.
h. A girl_________from a tall tree last night.
i. We piayed basketball against NO.1 Middle school.
At last we________.
2 选用方框中适当适当动词或词组并用其正确形式填空
recite,take,have, play,lost,miss, biow out,look like,be,get hurt
a. Look! They_______photos over there.
b. The little boy could________a lot of poems when he was ten years
1.
a. blow out
b. tell a lie
c. Thank you for
d. in fact
e. use to
f. comes back
g. to stand up
h. fell dowm
i. lost the game
2.
a. are taking
b. recite
c. Did have
d. miss
e. lost
f. playing
g. were
h. looks like
i. blow out
j. got hurt
数学部分
1. -1
幂和绝对值都非负，若它们之和为0，即两部分都是0。由幂为0 ，得
a= -12,带入 绝对值后得 12 + 9k +b =0 因为k是负整数，若k= -1，
则b＝－3， 但当k取－2或大于－2时候，b一定是正整数。所以 k= -1
2. 10，11，12，13，14，15
由第一个不等式得 x > 9
由二式得 x <= 15
又因为x是整数 ，所以取 10，11，12，13，14，15
3. 10 <= x <=30
由题意得，
2×（x+10）<= 80
10x >= 100
得：10 <= x <=30
4. 原题描述的不是很清楚，希望我猜测的没有错！
基于我的猜题下的解答：
由一式得 x> -17/10
由二式得 x< c
即 方程组的解为 －17/10 < x < c
(1)若只有一个整数解，即 x ＝ －1，