放映教学电影用的拷贝片(宽度为16毫米)

在空白处填入适当的句子补全对话。

A: Hello, 88261210.

B: Hello. ___1___

A: Yes. This is Lingling speaking.

B: Hi, Lingling. You like listening to the radio. ___2___

A: The radio says it’s going to be sunny these days.

B: Good! What are you going to do for the spring field trip?

A: Nothing much. Why?

B: Our classmates plan to go on a four-day visit to Beijing___3___

A: Sure! I'd love to. Will we go there by bus or by train?

B: ___4___ I love to go by bus. What about you?

A: I love to go by train. You see, going by bus doesn’t cost as much as by train, and going by bus isn’t as comfortable as by train.

B: Yes. Most of the classmates love to go by train. Let's go there by train. ___5___.

A: Yes, I am. And I can go to find out the information about the tickets at once. See you.

B: Thank you. See you.

施工过程中技术复核工作的主要内容可概括为（）。

A．图纸审查

B．隐蔽工程的检查验收

C．技术交底

D．工序间交接检查验收

E．工程施工预检

下列各物质：①6.02×10²³个CH₄②2.5molH₂S③1.5molNH₃所含氢原子数目由多到少的顺序是（　　）

A．②③①

B．②①③

C．①②③

D．③②①

生产毒性药品，每次配料时需复核人员

A．车间领导

B．2人以上

C．3人以上

D．5人以上

E．全车间人员

当被试品具有较大电容时，tanδ测试不能有效反映试品中可能存在的局部缺陷。