[单项选择]血循环中的IC（circulatingimmunocomplex，CIC）为相对分子量小的复合物，其分子量通常为（）.
A. 等于19S
B. 小于19S
C. 小于29S
D. 大于19S，小于29S
E. 大于29S

[简答题]分析材料3,“一身而二任焉”指的是谁?为什么?

[单项选择]梅毒确诊试验（）
A. RPR
B. USR
C. TRUST
D. FTA-ABS
E. VDRL

[单选题]多台HXD1C机车重联运行时，关于WTB网线连接不成功，下列说法错误的是（ ）。
A.在所有车辆没有合蓄电池前,钥匙开关就闭合
B.所有机车都必须给电钥匙
C.只能是本务机车给电钥匙

[单项选择]Learn to Be a Team Player
A wise man once said to a young novice, "The best way to limit your accomplishments is to try doing everything by yourself."
A simple statement, yet it has (21) implications. The result is evident when you work with others: You (22) your effectiveness. You achieve bigger success. You and your team can go far. In fact, the sky is the limit when you all work as a team.
The adage, "many hands make light work" is not only tree but practical these days when the demands and pressure at workplace are high. More often, lone rangers tire and get worn out before they (23) .
So it’s wiser to inculcate team spirit from young, especially in the school, and learn the skills needed to be a survivor in the working field (24) on in life.
Team-building is an art. And like any artisan, we all need to embrace the skills required to be a perfect artist. It may take heaps of encouragement, tons of (25) and a trucklo
A. declare
B. mention
C. speak
D. tell

[单项选择]几个学生周末结伴外出旅游，中午在野外进食随身携带的火腿肠、面包、罐头等食物。次日，所有学生相继出现全身乏力、软弱、头晕、恶心、腹胀、视物模糊、声嘶等表现，无发热、腹泻，神志清楚。本病例最有可能的诊断是（）
A. 脊髓灰质炎
B. 流行性乙型脑炎
C. 肉毒中毒
D. 格林-巴利综合征
E. 病毒性脑炎

[单选题]道口、人行过道、平过道铺面宽度应与道路路面宽度相同，护轨轮缘槽宽度，曲线内股应为( )mm。
A.45～60mm
B.70～100mm
C.90～100mm
D.300mm

[单项选择]下列对于基于角色的访问控制模型的说法错误的是？（）
A. 它将若干特定的用户集合与权限联系在一起
B. 角色一般可以按照部门、岗位、工种等与实际业务紧密相关的类别来划分
C. 因为角色的变动往往远远低于个体的变动，所以基于角色的访问控制维护起来比较便利
D. 对于数据库系统的适应性不强，是其在实际使用中的主要弱点

[单项选择]Organic farmers had fought to prevent genetically-engineered crops from being (67) organic, and it could (68) for them. Plants genetically (69) to resist insects and other pests (70) about 15-percent of United States crop production, but it has become a (71) 15-percent. Several European countries are refusing to (72) genetically-engineered crops from the United States. Jim Skiff, president of the Illinois-based company U-S Soy, says his company will not grow crops with genetically modified organisms, known as G-M-O for short.
But the biotechnology industry is fighting back. Here’s an advertisement produced by the Washington-based Council for Biotechnology Information. The biotech industry received a (n)
(73) in April, (74) a National Academy of Sciences report (75) that C-M-O crops appear to be safe. G-M-O supporters called the report proof (76) fears of these crops are (77)
A. constant
B. unfavorable
C. temporary
D. proficient