在展品布置中,有的展品适合陈列在展位中心地面,把展品按()、椭圆或方形摆放成岛形,称之为岛形陈列。
A、三角形
B、五角形
C、梯形
D、圆形
参考答案:D
用所给动词的适当形式填空。
1. They________(not have) any classes next week.
2. We needn't________(go) to school, and we will study on computers.
3. This land of robots will be fun________(watch).
4. He thought that computers would never________(use) by most people.
5. We are able_________(have) our own robots.
6. Scientists are now trying to make robots________(look) like people.
7.It will be difficult for a robot________(do) the same things as a person.
8.Would you like________(do) such jobs?
9. In the future, there________(be) more robots everywhere.
10. After an efuthquake, a snake robot could help_________(look) for people under buildings.
下列哪项不符合肝癌超声声像图的表现()
A.肝脏体积增大、形态失常
B.肝实质内出现分布不均匀、大小不等反射较强的密集光点
C.一定有大小不等的液性暗区
D.肝内胆管扩张
E.边缘不规则的实质性回声衰减暗区