下列说法中正确的是（ ） A．手提水桶感觉很累，是因为水桶的重力作用在手上 B．

下列命题的逆命题不成立的是（　　）

A．同旁内角互补，两直线平行

B．平行四边形的对边相等

C．若两个角是直角，则它们相等

D．若两个实数的平方相等，则它们相等

学校要添置40套课桌凳，凳子每条25元，桌子的单价100元，学校买这些课桌椅共需要多少钱？

根据句意，填写适当的单词。

1. I am always angry at those______(广告) when I watch a TV play.

2. The question is too difficult. None of us can answer it ______(正确).

3. Mr. Zhu is always kind enough to help us______(解决) some problems.

4. Millie is one of the ______(亲密) friends of theirs.

5. A lot of foreign visitors show great ______(兴趣) in the Great Wall.

6. Mike was sad because he did even ______(糟糕)in this exam.

7. How______(令人惊讶) the Harbour Bridge looks in the photo!

8. ______(不幸运), he fell off the bike and hurt himself.

9. Don't leave the little girl by ______.(自己)

10. The White House is a beautiful building ______(有)a lot of flowers and trees.

ISM是SD的结构模型基础。

某处理器具有64GB寻址能力，则该处理器的地址线有( )。

A．64根
B．36根
C．32根
D．24根