空气，就是空调中所指的湿空气，是（）和水蒸气的混合气体

用括号内所给动词的适当形式填空，必要时可加助动词或情态动词。

     I had a very    1      (excite) camp this summer. I thought about going to Hainan, but decided __2__

(go) to Beijing at last. My parents want me to visit Tsinghua University and other places of interest in

Beijing. After all, Beijing is the capital of our mother land. I had fun _ 3__ (visit) Beijing! We    4     (see)

many interesting things there and Tsinghua University impressed (留下印象) me deeply. After I came

back from Beijing,I realized (意识到) I _5__(study)harder from then. And I think _6__ (go) to Tsinghua

University is my dream. So I often spend much time    _7__ (learn) all my lessons. I __8 _ (put) my

heart into my lessons from now on, and my parents are both glad to help me. I believe my dream can

come true one day !

若将三角形各顶点的纵坐标保持不变，横坐标均乘以-1，则所得三角形的形状与原三角形相比______；若让纵坐标不变，横坐标均增加2，则所得三角形的形状与原三角形相比______；若让横坐标不变，纵坐标均乘以2，则所得三角形的形状与原三角形相比______．

移动存储设备最大的优势在于（）

A.标准存储单位成本低

B.存储量大

C.易保存，受外界影响更小

D.方便易用

患者女性，29岁，诊断为肥厚型心肌病，下列不符合其诊断的是（）

A.胸骨左缘第3、4肋间听到喷射性收缩期杂音

B.胸痛

C.胸部X线示心影明显增大

D.心电图有病理Q波

E.超声心动图显示室间隔非对称性肥厚

多种经营必须认真贯彻“（）、（）”的方针，建立健全安全生产（）和安全生产规章制度。