题目内容
投标人投标报价中关于暂列金额编制原则，说法正确的是（）。
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国外工程设计阶段的投资估算精度要求的误差控制在（）以内。
根据题目要求完成下列任务。用中文作答。
教师教授了“过去进行时”这一语法内容，根据这一语法内容进行了如下练习活动。
Activity 1
T: Hi， what were you doing at $ p.m. yesterday？
S1: I was doing my homework.
T: Good. Ask the student behind you the same question.
S1: What were you doing at 8 p.m. yesterday？
$2: I was watching TV. What were you doing at 8 p.m. yesterday？
$3: I was cleaning my room. What were you doing at $ p.m. yesterday？
Activity 2
T: Now let‘s see who has the best memory. I was cooking at 6 o‘clock yesterday evening.What about you？
S1: I was having dinner.
T: Tell your partner like this: Ms. Zhang was cooking at 6 o‘clock yesterday evening. I washaving dinner.
S1: Ms. Zhang was cooking at 6 o‘clock yesterday evening. I was having dinner.
$2: Ms. Zhang was cooking at 6 o‘clock yesterday evening. S1 was having dinner. I wasdoing some shopping.
$3: ...
根据所设计的练习，回答下面三个问题。
（1）该教师设计的两个活动属于什么类型的语法操练活动？请简要说明。（6分）
（2）该设计中存在什么问题？（12分）
（3）针对存在的问题提出合理的建议。（12分）
工程项目的建设投资不包括内容为（）。
资格预审的项目概况与招标范围应说明（）。
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