根据拼音写出汉字。

①陈毅？不认识，shù ____不接待。

②我以为齐先生虽是海内外闻名的化学专家，可是有一门化学，齐先生也许一qiào____ 不通。

③市政府决定聘请齐先生主持chóu____ 划。

④我马上要感到发电厂去，连三秒钟也不能dān ____搁。

阅读理解

 (B)

    To be honest, I enjoy music a lot and Tejano music is my favorite．Tejano music was born in Texas．Although it has influences from Mexico and some other Latin American countries，the main influence is from America．

    Like most music around the world，Tejano music mixes many different styles．It combines(结合)folk，country，rock and a bit of the blues．

    I prefer to listen to Tejano music because it makes me feel good．I enjoy dancing to it，too．It's so easy that there is no rule for my friends who want to join me．Some of my classmates also like Tejano music．It is popular with young people．

    I also love other kinds of music．I listen to rock when I'm happy．My favorite rock band is Creed because they sing a lot about their lives and express how they feel in their songs．They sing about their past experiences，their feelings and the way they want their lives to change．I also like heavy metal music．Metallica is my favorite heavy metal band．I usually listen to their music when I am upset．It tells me that．whatever difficulties I meet in life，I must try hard to get the things I want and I should never give up．

    Music influences us all in different ways．What type of music do you like?

直线 $2x-y+1=0$ 与直线 $ax+2y+1=0$ 的垂直,则 $a$ =（   ）

下列对吸毒的认识不正确的是（ ）

美国商号名言：“如果你不能战胜对手，就加入到他们中间去。”中国有句名言：“一花独放不是春，百花齐放春满园。”台湾广告界有句名言：“与其被国际化，不如去国际化。”这些名言说明　　                                           （　　 ）
①现代竞争，不再是“你死我活”，而是更高层次的竞争与合作
②现代企业追求的不再是“单赢”，而是“双赢”或“多赢”　
③要学会在合作中竞争，相互排斥
④要学会在竞争中合作，击垮对方