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问题 单项选择题

有多个用户在一个小区中上GPRS，在小区GSM话务较繁忙有轻微拥塞的情况下以下哪种操作能较明显的改善用户上网的速度？（）

A、将TBFLIMIT设小点

B、将TBFLIMIT设大点

C、改变PDCHALLOC方式

D、增加FPDCH数

答案

参考答案：D

单项选择题

One day while a girl was walking in the woods she found two starving songbirds. She took them home and put them in a small (16) She cared for them and felt great love for them.

Once the (17) and per of the two birds flew from the cage. Therefore, (18) he flew close, she grasped him (19) She felt glad, but suddenly she felt the bird go limp. She opened her hand and (20) in horror at the dead bird.

She noticed the other bird moving back and forth on the edge of the cage. She could feel his great need for (21) She lifted him from the cage and (22) him softly into the air. The bird circled once, twice, three times.

The girl watched delightedly at the bird’ s enjoyment. Her heart was no longer (23) with her loss. Suddenly the bird flew closer and (24) softly on her shoulder. It sang the sweetest melody that she had ever heard.

The fastest way to (25) love is to hold on it too tightly, while the best way to keep love is to give it WINGS!

17().

A.weaker 

B.taller 

C.larger 

D.shorter
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单项选择题

若导管置管于（），则血浆分离中心导管的末端应定位于上腔静脉与右心房的连接处。

A.上腔静脉中下段

B.锁骨下或颈内静脉

C.上腔静脉上段

D.颈内静脉

E.锁骨下静脉
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