打开考生文件夹，在STUDENTS子文件夹中创建一个名为WANGLING的子文件夹。

工程塑料ABS中苯乙烯的主要作用是( )。

A．提高弹性和韧性
B．改善电性能和成形能力
C．提高耐热、耐腐蚀性
D．提高表面硬度

泪液中含有的下列抗菌成分中，在角结膜受到细菌病毒感染后含量明显增高的物质包括（）

A.IgG

B.IgM

C.IgA

D.溶菌酶

E.补体

苏格拉底把古希腊哲学从“天上带到人间”。这是因为    (    )

①提出“认识你自己”，把思考重点从自然引向自我

②提出“知识即美德”，启发人们去追寻人生真谛

③把古希腊哲学发展为一门研究人的学问

④体现了“吾爱吾师，吾尤爱真理”的不懈追求精神

A．①②③

B．②③④

C．①③④

D．①②④

《污水综合排放标准》将排放的污染物分成两类，下列说法错误的是( )。

A．(A) 第一类污染物为毒性较大

B．(B) 第二类污染物为毒性较大

C．(C) 第一类污染物部分行业和污水排放方式，一律在车间或车间处理设施排放口采样，其最高允许排放浓度必须达到本标准要求

D．(D) 第二类污染物，在排污单位排放口采样，其最高允许排放浓度必须达到本标准要求

Sometimes we have specific problems with our mother; sometimes, life with her can just be hard work. If there are difficulties in your (1) , it’s best to deal with them, (2) remember that any (3) should be done (4) person or by letter. The telephone is not a good (5) because it is too easy (6) either side to (7) the conversation.

Explain to her (8) you find difficult in your relationship and then (9) some new arrangements that you think would establish a (10) balance between you. Sometimes we hold (11) from establishing such boundaries because we are afraid that doing (12) implies we are (13) her. We need to remember that being (14) from our mother does not (15) mean that we no longer love her. If the conflict is (16) and you cannot find a way to (17) it, you might decide to give up your relationship with your mother for a while. Some of my patients had (18) "trial separations". The (19) allowed things to simmer down, enabling (20) .

5（）

A.innovation

B.manoeuvre

C.medium

D.synthesis