解不等式(组),并把解集在数轴上表示出来.(1)2x+3<-1 (2)x+2>0

题型:解答题

问题:

解不等式(组),并把解集在数轴上表示出来.
(1)2x+3<-1  
(2)
x+2>0
x-1
2
+1≥x
考点:一元一次不等式组的解法
题型:解答题

Jack and Jim were classmates. They lived in the same town. After they left school, Jack kept a flower shop and Jim became a doctor in a hospital. Jim made a girlfriend. He bought a red rose for her each day to show his love. The flowers made his girlfriend very happy. Sometimes he took the rose to her himself But when he was very busy in the hospital, he asked Jack to send the rose to her instead of him.

One afternoon, Jim came to the flower shop and said to Jack,“ I will go to another town on business today. So I have no time to give the letter and the flowers to my girlfriend. Please send the letter and twenty-four roses to her"

In the evening, when Jack was busy in the shop, Jim came in and looked very angry.

“Jack, how many roses did you give my girlfriend this morning?” I gave her thirty roses." answered Jack.

"Why did you do that?"

"You often buy flowers in my shop for your girlfriend, so I want to give her six more flowers. What happened then?"

“ How foolish you are!" he threw the letter on the table,‘‘ Read it yourself." Jack picked it up and began to read:

My dear,

Today is your birthday. I hope you will like my present---the roses. One rose means one year. Wish you are always charming.

Jim

小题1:Where did Jim work?

A.In a flower shop

B.In a hospital

C.In another town

D.We don't know小题2:What did Jim give his girlfriend every day?

A.A letter

B.A rose

C.a letter and a rose

D.It isn't mentioned.小题3:How did his girlfriend feel when she got the flowers on her birthday?

A.Happy

B.Angry

C.Sad

D.Sorry小题4:How old was the girl?

A.Thirty

B.Twenty

C.twenty- four

D.thirty-six小题5:Why was Jim so angry?   .

A.Because the roses were too expensive.

B.Because Jack didn't send the roses to his girlfriend.

C.Because Jack sent too many roses to his girlfriend.

D.Because Jack saw the letter.

题型:解答题

引气剂和引气减水剂不宜用于( )。

A.预应力混凝土

B.抗冻混凝土

C.轻集料混凝土

D.防渗混凝土

题型:解答题

择时能力是基金经理对市场整体走势的预测能力。()

题型:解答题

要坚持权为民所______,情为民所______,利为民所______,______倾听群众呼声,______反映群众愿望,______关心群众疾苦,多为群众办好事、办实事。
依次填入画横线部分最恰当的一项是( )。

A.用 系 谋 真诚 真实 真情
B.谋 系 用 真诚 真实 真情
C.用 系 谋 真心 真诚 真实
D.用 系 谋 真实 真心 真诚

题型:解答题

()是位于直接顶之上的有一定厚度的坚硬岩层。

A.假顶

B.老顶

C.直接顶

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