除去原料皮上毛的工序称为脱毛。这一工序都是将生皮浸于中()来完成的,所以又称为浸灰。
A.酸式盐
B.甲醛
C.有机酸
D.过饱和的石灰溶液
参考答案:D
阅读理解。
In Japan many old people don't live with their children. They have no one to talk to. Their life is very
boring. Now a new robot (机器人) comes. It has two big eyes and ears. It looks like a white teddy bear.
There are four cameras and a sensor (传感器) in the robot. It can draw planes. It can also use the
Internet (网络) to find some pictures and draw them down. It is a good friend for the old. It will help them a lot and it can chat (聊天) with them. It can answer some questions,too. Sometimes it also helps them to
find glasses. It doesn't mind listening to the same stories again and again. Lots of children also like it. They can play with it when their parents go to work.
1. In Japan many old people _____ talk with others.
A. usually
B. often
C. seldom
D. always
2. What do many old people think of their lives in Japan?
A. Busy.
B. Boring.
C. Interesting.
D. Colorful.
3. What color is this new robot?
A. White.
B. Green.
C. Black.
D. Brown.
4. How many cameras does the robot have?
A. 2.
B. 3.
C. 4.
D. 5.
5. What things can't the robot do?
A. Chat with others.
B. Draw pictures.
C. Use the Internet.
D. Do housework.
存储容量是磁盘驱动器的重要技术指标,下列()与磁盘存储器的容量无关。
A.数据盘面数
B.盘面磁道数
C.平均寻址时间
D.每个磁道记录的二进制字符数