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问题 单项选择题

小儿疼痛治疗时应用布比卡因时，一次用药最多不可超过（）。

A.7mg／kg

B.10mg／kg

C.1mg／kg

D.2mg／kg

E.6mg／kg

答案

参考答案：D

多选题

下列说法正确的是（　　）

A生活中事例物理原理B方式蒸发沸腾
不同点平和剧烈
能从各个方向看到物体平面镜成像表面内部
一定温度任何温度
夜间行车，驾驶室内不宜亮灯漫反射相同点汽化、吸热
C光学元件成像大小关系成像虚实情况成像

原理

D串联并联
平面镜物像始终等大虚像光的

反射

连接方式逐个顺次连接并列连接
凸透镜能成放大也能成缩小的像虚像、实像光的

折射

有无接点无有

A．A

B．B

C．C

D．D
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单项选择题

Many of the activities performed during the preliminary investigation are still being conducted in（1）,but in much greater depth than before. During this phase, the analyst must become fully aware of the（2）and must develop enough knowledge about the（3）and the existing systems to enable an effective solution to be proposed and implemented. Besides the（4）for process and data of current system, the deliverable from this phase also includes the（5）for the proposed system.

A.logical models 

B.physical models 

C.design models 

D.implementation models
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