—They all agree______George. Has the proje

一只白鹭在平静的湖面上飞翔，我们看到白鹭在湖中的倒影是由于光的_____造成的。古诗文中“潭清疑水浅”说的是光的____现象。

按照FIDIC《施工合同条件》规定，如果指定分包商不是因执行承包商的错误指令而出现违约行为时，( )。

A．业主可将指定分包商的违约行为视为承包商的违约

B．应由选定指定分包商的工程师和指定分包商共同承担责任

C．应由承包商和指定分包商共同承担责任

D．应由指定分包商直接对业主承担责任

句型转换。

1.She needs a piece of paper. (改为一般疑问句)

   _______ she _______ a piece of paper?

2.It's Sunday today. (对画线部分提问)

   _______ _______ is it today?

3.He was talking about the old man. (对画线部分提问)

   _______ _______ he talking about?

4.I went to school yesterday. (改为否定句)

   I _______ _______ to school yesterday.

5.Let's show this gift to our teacher. (改为否定句)

   _______ _______ show this gift to our teacher.

6.We know she is a very important person. (改为过去时)

   We _______ she _______ a very important person.

7.I was runing when a car came. (改为一般疑问句)

   _______ _______ running when a car came?

8.Mary often does some shopping on Sundays. (改为同义句)

   Mary often _______ _______ on Sundays.

9.Tom does his homework at school. (改为一般过去时)

   Tom _______ _______ homework at school.

分层喷射混凝土时，后一层喷射应在前一层混凝土终凝后进行，一次喷射的最大厚度：拱部不得超过，边墙不得超过（）

A.10cm，10cm

B.15cm，15cm

C.10cm，15cm

D.15cm，10cm

对于六塔吸附的制氢系统程序运行的方式共有（）种。

A、10

B、8

C、6

D、4