[单选题]在盘查过程中，遇有盘查对象突然持械袭警时，警察首先要做的是（ ）。(1.0分)
A.快速拔枪
B.拉开距离
C.上前对抗
D.寻找掩体

[单选题]道岔静态检查三角坑的基长，采用轨距尺时（）。
A.2.4m
B.3m
C.6.25m
D.按规定位置检查

[多选题]关于警情修改功能的操作,以下说法正确的是:
A.警情修改功能可以修改警情类型。
B.警情修改功能可以修改责任区大队及出动队伍。
C.无法利用警情修改功能修改行政区域。
D.无法利用警情修改功能修改火灾报告表单。

[单项选择]关于多形性腺瘤癌变，以下错误的是（）
A. 又称为癌在多形性腺瘤中
B. 发生于腮腺，可侵犯面神经
C. 有50%的多形性腺瘤发生恶性转化
D. 肿瘤呈浸润性生长
E. 肿瘤中可见良性多形性腺瘤结构

[单选题]关于民航安检机构的职责,正确的是( )。
A.应当根据民航局规定,制定并实施民航安检工作质量控制和培训管理制度,并建立相应的记录
B.应当根据机场公安局规定,制定并实施民航安检工作质量控制和培训管理制度,并建立相应的档案
C.应当根据国务院规定,制定并实施民航安检工作质量控制和培训管理制度,并建立相应的记录
D.应当根据所属民航地区管理局规定,制定并实施民航安检工作质量控制和培训管理制度,并建立相应的档案
.

[填空题]

 Each year millions of people suffer from the effect of alcohol and drug abuse, getting into illness, crime and death.
In the United States alone, l0 to 12 million men and women and their loved ones and family suffer from alcohol. Additional millions abuse alcohol at great cost in health.
In Canada, it is said, "Alcohol increases business of hospitals, ambulance drivers, doctors, and nurses." Alcohol abuse and dangerous drugs have swept through Europe. Soviet culture, too, is paying enormous social and economic costs.
Developing nations are bothered by drug problem—both ancient and modern. In this part of the world hundreds of millions request doctors to ease their miseries and problems in life. These methods of coping are unhealthy solutions!
This passage is mainly about the worldwide (46) and (47) abuse.
48 million people and their families in America have suffered from alcohol ab