超声引导穿刺时导致针干显示不清的原因是（）。 A.侧方声影 B.部分容积效应 C.内

阅读理解匹配题。

     Some students are going to some different (不同的) places this weekend. Where are they going? Can you

find their places they want to go?

     ( )1 Sally: I have a pen pal in Wenchuan. Some days ago, I got a letter from her. She said she needed

some school things. I bought some and I want to post them to her. So this weekend, where will I go? Do you

know?

     (      )2. Ricky: I don't like weekends. For me, I have no weekends. My parents usually ask me to go to

evening school to learn English and other subjects. I always feel tired. That's why I don't like weekends.

     (     )3. Barbara: I love weekends. I can do what I want to do. I want to go to a quiet place to study because

Mid-term Exam (期中考试) is coming. I want to borrow (借) some books from that place and return (还) some

to that place. Do you know where I want to go?

     (      )4. Angle: This weekend will be an exciting one for me. My parents are going to take me to have

something special (特别的) in the place. It is said that we can try (尝试) some Indian food. Isn't it interesting!

     (      )5. Stella: I want to relax myself on weekends. This weekend, I want to do something different. I want

to go to this place. There, you can see many kinds of animals there. And children like to go there with their

parents.

             A                          B                             C                            D                         E

中东问题的关键是石油资源的争夺。

错误：_________________________

改正：_________________________

一6岁男孩，出生后有紫绀，6个月后紫绀明显，平时喜欢蹲踞，哭泣时有突发呼吸急促和青紫加重，请指出以下哪项诊断可能性大（）。

A.房间隔继发孔缺损

B.室间隔小缺损

C.动脉导管未闭

D.法洛四联症

E.肺动脉口狭窄

下列选项中，不属于维纳提出的归因纬度的是（ ）

A．内在性

B．普遍性

C．可控性

D．稳定性

下列选项中，不属于金融特征的是()。

A、金融是货币的交易

B、金融是信用交易

C、金融原则上必须以货币为对象

D、金融交易可以发生在各种经济成分之间