若发现有人触电，首先要进行的操作是（）。A、立即切断电源 B、立即报告领导 C、手拉

糖皮质激素在肺结核治疗中的应用方法是（）

A.甲泼尼龙，40mg，2周

B.泼尼松，15~20mg，毒性症状减轻后逐渐减量，至3~4周停药

C.地塞米松，15~20mg，毒性症状减轻后逐渐减量，至6~8周停药

D.地塞米松，15~20mg，毒性症状减轻后逐渐减量，至4~6周停药

E.泼尼松，15~20mg，毒性症状减轻后逐渐减量，至4~8周停药

某同学设计了测定空气中氧气含量的实验，实验装置如下图。

图1                                 图2

该同学的实验步骤如下：

①       将1图中的集气瓶分为5等份，并作好标记。

②在带橡皮塞和导管的燃烧匙内装入足量的红磷，将导管上的止水夹夹紧，在酒精灯上点燃红磷，并立即伸入集气瓶内，塞紧橡皮塞。

③充分反应后，待集气瓶冷却至室温，打开止水夹。请回答下列问题：

(1)该实验中红磷需稍过量，目的是                    ，写出发生反应的表达式                    ，该反应的基本类型是                 。

(2)步骤③中打开止水夹后观察到的现象是                                ，由此可得出空气中氧气的体积约为              ，集气瓶中的气体主要是氮气，由此实验可以推测氮气的性质：其中物理性质是                     ，化学性质是                       。

（3）这个实验可否用硫或者木炭来代替红磷          （填“是”或者“否”）原因是   

                                       。

某同学对实验进行反思后，提出了改进方法（如图2所示 ），你认为改进后的优点是：

下列各组表示了国际专利分类表部的类号所指示的部的类名，请判断哪些组存在错误（）。

A．G部：固定建筑物 F部：机械工程；照明；加热；武器；爆破 D部：物理H部：人类生活必需

B．E部：电学 C部：化学；冶金 B部：作业；运输 G部：物理

C．A部：人类生活必需 D部：纺织；造纸 E部：固定建筑物 H部：电学

D．F部：纺织；造纸 B部：化学；冶金 C部：作业；运输 A部：机械工程；照明；加热；武器；爆破

Goals can help you do, be and experience everything you want in life．Instead of just letting life happen to you, goals allow you to make your life happen．

Successful and happy people have an idea of how their life should be and they set lots of goals to help them succeed．By setting goals you are taking control of your life．It’s like having a map to show you where you want to go．Think of it this way．There are two drivers．One has a destination in mind which is laid out for her on a map．She can drive straight there without any wasted time or wrong turns．The other driver has no goal or destination or map．She starts off at the same time from the same place as the first driver, but she drives without an aim around, never getting anywhere, just using up gas and oil．Which driver do you want to be?

Winners in life set goals and follow through on them．Winners decide what they want in life and then get there by making plans and setting goals．Unsuccessful people just let life happen by accident．Goals aren’t difficult to set---and they aren’t difficult to reach．It’s up to you to find out what your goals and ideals（理想） really are．

Research tells us that when we write a goal down, we are more likely to achieve．Written goals can be reviewed regularly, and have more power．Like a contract（合同） with yourself, they are harder to neglect（忽视） or forget．Also when you write your goals in a particular way, you are able to make yourself be continuously alert（警觉） to situations that will further your goals．

60．The writer gave the example of two drivers to show_______________．

A．how stupid the first driver was              B．the importance of having a map

C．how stupid the second driver was            D．the importance of setting a goal

61．According to the passage, successful people are different from unsuccessful ones in that ______．

A．the successful people set goals for everything and can get help from others

B．the unsuccessful people’s goals are often too big for them to realize

C．the successful people set goals in their lives and make plans to carry them out

D．the unsuccessful people make plans for everything but can not work hard

62．According to the passage, the most important thing in realizing one’s ideal is to_______．

A．try to be realistic about one’s ability

B．let others help him or her to make his or her dream come true

C．let others understand him or her first, then work together with them

D．have a clear mind of what he or she wants in life

63．Which is the best title for the passage?

A．Goals help you succeed．               B． How to succeed．

C．Why we always failed．                 D． A research on setting goals．

决定使用哪条路径通过于网，应属于下列OSI的哪一层处理

A．物理层

B．数据链路层

C．传输层

D．网络层