管电压在90kV摄影时，最低滤线栅的栅比应为（） A.4：1 B.6：1 C.8：1

You are given many chances in life to choose to be a victim(受害者) or creator. When you choose to be a victim, the world is a cold and difficult place. “They” did things to you which caused all of your pain and suffering. “They” are wrong and bad, and life is terrible as long as “they” are around. Or you may blame yourself for all your problems, then internalizing(内化)your victimization. The truth is, your life is likely to stay that way as long as you feel a need to blame yourself or others.

Those who choose to be creators look at life quite differently. They know there are persons who might like to control their lives, but they don’t let this get in the way. They know they have their weaknesses, yet they don’t blame themselves when they fail. Whatever happens, they have choice in the matter. They believe their dance with each sacred(神圣的)moment of life is a gift and that storms are a natural part of life which can bring the rain needed for emotional and spiritual growth.

Victims and creators live in the same physical world and deal with many of the same problems, yet their experience of life is different worlds. Victims are easy to be in anger, guilt, and other emotions that cause others--and even themselves--to feel like victims, too. Creators choose love, inspiration, and other qualities which inspire（鼓舞）not only themselves, but all around them. Both victims and creators always have choice to decide the direction of their lives.

In fact, all of us play the victim or the creator at different points in our lives. One person, on losing a job or a special relationship, may feel as if it is the end of the world and go into terrible suffering for months, years, or even a lifetime. Another with the same experience may choose to first experience the sadness, then accept the loss and soon move on to be a powerful creative strength in his life.

In every moment and every situation, you can choose to have fuller, richer life by setting a clear goal to change the victim within, and by inviting into your life the powerful creator that you are.

小题1: What does the word “they” in Paragraph 1 probably refer to?

A．People and things around you.

B．Chances and problems.

C．Creators and their choices.

D．Victims and their sufferings.小题2: What can we learn from the passage?

A．Creators have the ability to predict future life.

B．Creators deal with ups and downs of life wisely.

C．Victims can influence more people than creators.

D．Victims and creators face quite different things in life.小题3:The examples mentioned in Paragraph 4 show that ________.

A．strong feelings of sufferings in life pull people into victims.

B．people need family support to deal with sufferings in life.

C．it takes creators quite a long time to clear out their pains.

D．one’s experiences decide his attitude toward his life.小题4:What is the writer’s purpose in writing this passage?

A．To describe victims and creators.

B．To compare victims with creators.

C．To suggest changing from victims to creators.

D．To explain the relation between victims and creators.

患者，女性，26岁，妊娠2个月余，因头痛、头晕，伴乏力1周入院。既往有反复咽炎及扁桃体炎史，6年前曾出现"血尿"。父母均有高血压病病史。入院查体：轻度贫血貌。BP165/100mmHg，P96次／分，双肺未见异常，心界不大，律齐，心尖部闻及3/6级收缩期吹风样杂音，肝脾未及，双下肢可凹性水肿（±）。

该患者治疗过程中，不宜使用（）

A.钙拮抗药

B.α₁受体阻滞药

C.硫酸镁制剂

D.血管紧张素转化酶抑制药

E.β₁受体阻滞药

下列关于处分期说法错误的是（）。

A、警告的处分期为3个月

B、记过、记大过的处分期为6个月

C、降职的处分期为12个月

D、撤职的处分期为24个月

高速铣削下来的切屑有较高的温度，可以达到（）度，极易引起烫伤。

A、500

B、600—700

C、800—1000

D、1000-1100

赤霉素是一种重要的植物激素，能促进豌豆茎蔓伸长。赤霉素的合成过程如下：

矮茎豌豆是由于缺乏某种酶，导致赤霉素不足，影响株高。请分析回答：

植株合成GPS、KAO等酶要经过（）两个过程，豌豆株高这一性状是基因通过控制（）进而控制代谢得以实现的。