若x2-3x-10=(x+a)(x+b),则a=( ),b=( )。

题型:选择题

问题:

若x2-3x-10=(x+a)(x+b),则a=(    ),b=(    )。

考点:因式分解
题型:选择题

"五四"新文化运动高举的旗帜是()

A.民主

B.博爱

C.自由

D.平等

E.科学

题型:选择题

"It’s no use, Mum," said Johnny. "I’m just no good at dancing."

"You’ve got to keep trying. Tonight will be (1) , dear. Try a turn with that pretty Lisette. "

Johnny (2) . Every Saturday night used to be the best of the week. He and his parents went to the (3) at the Club, where his hero, Alcide, played the accordion with the band. But lately everything had changed. Now that Johnny was older, he was (4) to dance with a girl!

(5) Johnny and his parents arrived at the Club, music had already started. Johnny got up his (6) to approach Lisette. "May I have this dance" Johnny asked. "That’s all right."said Lisette. Johnny struggled to keep up with Lisette’s (7) steps, but he was always one beat behind her. Then Johnny heard his friend Pierre say, "Look! Johnny has two left feet!" (8) burst from the crowd. Johnny (9) and ran outside, determined never to go to another dance.

The next Saturday, Alcide (10) to Johnny’s house for some potatoes. He happened to hear Johnny playing the accordion. Alcide’s eyes (11) . "Bring that accordion and play some songs tonight," Alcide said. Then he drove off, leaving Johnny staring open mouthed (12) him.

At the Club, Johnny scanned the crowd for Lisette and (13) her. The band played for a long time before Alcide said, "Dear friends, I got a (14) for you tonight. Young Johnny is going to join us!" (15) , Johnny stepped up on the platform, his eyes on the floor. He began to play, and the band (16) behind him. When the song ended, he heard cheers. Johnny kept playing until the dance was (17) . "You did a fine job tonight. Play with us again next Saturday night, " Alcide said. "Yes, sir! " said Johnny. (18) he went outside, Johnny saw Lisette and her friends near the door. Lisette stepped (19) , smiling. "You played really good tonight!" she said."Thank you," Johnny blushed. As he walked on, Pierre (20) moved out of the way for him to pass.Johnny patted his accordion. Come to think of it, in his whole life, he had never once seen Alcide out on the dance floor.

15().

A.Struggling

B.Trembling

C.Wandering

D.Whispering

题型:选择题

工程预付款的额度主要是保证施工所需材料和构件的( )。

A.正常使用

B.正常储备

C.满足供应

D.及时采购

题型:选择题

控制性详细规划编制任务书的基本内容包括()

(1)总则

(2)土地使用和建筑规则管理通则

(3)地块划分以及各种地块的使用性质、规划控制原则、规划设计要点

(4)各地块控制指标条款(包括规定性、指导性以及有条件规划许可条款)

A、(1)(3)(5)

B、(1)(2)(3)(4)

C、(1)(2)(4)

D、(2)(3)(4)

题型:选择题

语法单位的形成关系

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