浅Ⅱ度烧伤的组织学划分指A．表皮角质层+透明层+颗粒层+棘层+生发层+真皮 * * 层 B

根据要求完成句子。

1. We publish our school newspaper twice a month. (改为被动语态)

     Our school newspaper ______ ______ twice a month.

2. The meeting began half an hour ago. (同义句)

    The meeting has ______ ______ for half an hour.

3. I heard that she was singing at that time. (改为简单句)

    I heard ______ ______ at that time.

4. My brother gave my mother a present on her birthday. (改为被动语态)

    A present ______ ______ to my mother on her birthday.

5. My friend seems to be very angry. (同义句) 

   ______ seems that my friend ______ very angry.

世界上第一个股票交易所，应该是（）。

A.阿姆斯特丹股票交易所

B.费城证券交易所

C.芝加哥证券交易所

D.纽约证券交易所

含碳量从2.11%~6.69%之间的铁碳合金叫白口铸铁。

软件的可维护性包括

A．正确性、灵活性和可移植性

B．可测试性、可理解性和可修改性

C．可靠性、可复用性和可用性

D．灵活性、可靠性和高效性

彩色电视的三基色为（）。

A.黄、红、青

B.红、青、紫

C.红、绿、蓝

D.红、黄、绿