艾滋病的潜伏期通常是（） A.2～10天 B.2～10周 C.2～10月 D.2～1

根据所给材料，回答下面问题

根据材料，以下说法错误的一项是( )。

A．2006年上半年工业企业产品销售率为97.79%

B．2006年上半年工业企业产品出口交货值低于2.8万亿元

C．主要行业中，交通运输设备制造业的增速最大

D．2006年上半年，全国钢材产量大于粗钢产量

— Jake told me he was in the museum just now.

— He is actually at home.________, he’s upstairs doing his homework.

A．Believe it or not

B．In general

C．In your opinion

D．In the end

8名世界网球顶级选手在上海大师赛上分成两组,每组4人,分别进行单循环比赛,每组决出前两名,再由每组的第一名和另一组的第二名进行淘汰赛,获胜者角逐冠、亚军,败者角逐3、4名,大师赛共有_________场比赛.

句型转换，每空一词。

1.  My socks are on the chair. (对画线部分提问)

     _____ are _____ socks?

2. What's your cousin's age?(改为同义句)

    _____ _____ is your cousm ?

3.  Those are T-shirts. (改为单数句)

     That _____ _____ T-shirt.

4.  Are those keys?(作否定回答)

    No, _____ _____ .

5.  She can sing and dance. (改为否定句)

     She _____ sing _____ dance.

6.  This girl often plays basketball after school. (改为一般疑问句)

    _____ this girl often _____ basketball after school?

7.  I can play chess. (对画线部分提问)

    _____ can you _____ ?

8.  Mary's brother does his homework at home. (改为否定句)

    Mary's brother _____ his homework at home.

9.  Dave wants to join the art club. (对画线部分提问)

     _____ does Dave want to join?

10.  What subject do they like best?(改为同义句)

       _____ their _____ subject?

低温为何能导致微生物活力减弱和死亡