[填空题]______是指以调整配合比或掺用外加剂的方法增加混凝土自身抗渗性的一种混凝土。

[填空题]垄断价格包括（ ）和（ ）两种形式。

[多选题] 《南昌局集团公司动车组接送车及试运行管理办法》（南铁辆〔2018〕179号）动车组试验应按计划进行，在规定()内完成。
A.区间
B.趟数
C.时间
D.日期

[多项选择]张某从甲公司购买的商品房一套，合同约定建筑面积126m²，单价为4500元/m²，交房时测绘得到的建筑面积为121m²，则张某可以选择( )。
A. 退房
B. 甲公司返还22500元
C. 甲公司返还27990元
D. 甲公司返还45000元
E. 甲公司返还36706元

[单选题]（　　）是指专门融通不超过一年短期资金的场所。
A.资本市场
B.货币市场
C.开放式基金市场
D.股票市场

[单选题] 在下图所示情况下用方向法观测水平角、盘左时瞄准目标的顺序是( )。
A.A—B—C—D
B.A—B—C—D—A
C.A—D—C—B
D.A—D—C—B—A

[多选题]车站门禁卡、钥匙借/还程序：（ ）。
A.在车控室填写《车站备品、钥匙/门禁卡借出登记簿》
B.行车值班员签认，并发放备品、 门禁卡或钥匙
C.归还时在《车站备品、钥匙/门禁卡借出登记簿》归还栏填写
D.行车值班员签认并收回备品、 门禁卡或钥匙

[单项选择]新课程把初中思想品德课的性质定位为：是一门以初中学生生活为基础、以引导和促进初中学思想品德发展为根本目的的（）。
A. 综合性课程
B. 专业性课程
C. 知识性课程
D. 学术性课程

[单项选择]请根据下面的短文回答第66-70题
Subject: Help! Date: 21/06/2005 10:02 a.m.
Dear Aunt Aggie,
I’m having a problem with my classmate, Rena, at school. The other day I wrote an email to another classmate, Beth, in which I said some things about Rena that perhaps weren’t very nice. Unluckily, when Beth was writing back to me, she accidentally forwarded (无意间转发) the message to Rena!Now Rena is really angry with me and won’t talk tome, and Beth is unhappy as well. She’s said sorry to me a hundred times already, but the harm is done. I feel bad, because I never would have said those things to Rena’s face, but how do I get her to forgive(谅解) me What should I do
Joe
To: joe@sohu.com From: A ggie@ yahoo.com
Subject: Some advice Date: 22/06/2005 10: 45 a.m.
Dear Joe,
This problem is more common than you might think!Email is ve
A. you don’t know who the email is for
B. you will never know who will get your email at last
C. you never know where the message is from