外墙清洗是指为了维护整个建筑的外观形象，减缓其老化而定期对建筑物的外墙进行清洗的保洁

阅读短文填空。

    Basketball stars have become hip-hop singers (街舞歌手). It's true. In the NBA, hip-hop music is very

popular. Many of the players, like Shaquille O'Neal of the Los Angeles Lakers, write rap rhymes (有节奏

感的唱歌) when they travel on planes from one city to another. 

    When they play basketball, some of the younger stars even try to look like hip-hop singers. "Hip-hop is

just part of our culture." says one player. "All of us grew up listening to rap and playing basketball, and

rappers grew up doing the same thing."

    Master P is a famous rap star who wants to become a basketball player. Two NBA teams, have invited

him to join them. They enjoy listening to his music. An NBA player has become a rapper. He has made four

successful rap albums (集).

    The NBA has a closer connection (亲密的联系) to hip-hop than any other sports league.

1. Many basketball players in NBA like ________.

2. Many NBA players ________ rap rhymes when they travel on planes.

3. ________ is just part of the NBA players' culture.

4. Master P is invited to join the NBA teams just because ________.

5. Some rapper hip-hop singers have become ________.

I like reading. I often go to     . Which is NOT RIGHT?

A．the Reading Club

B．the library

C．the bookshop

D．the school hall

何谓无土栽培？它与土壤栽培有何区别？

目前寄生虫病的实验室诊断的主要方法是（）。

A.病原学检查

B.免疫学检查

C.DNA探针检査

D.PCR检查

E.血清学试验

各大洲电力需求水平差距缩小，从整体趋势上来看是符合全球一体化发展的。