问题
填空题
过一点能画______条射线，过两点能画______条直线．
答案
过一点能画无数条射线，过两点能画一条直线；
故答案为：无数，一．
搜题请搜索小程序“爱下问搜题”
过一点能画______条射线，过两点能画______条直线．
过一点能画无数条射线，过两点能画一条直线；
故答案为：无数，一．
In the futures market, a contract does not trade for two days because trades are not permitted at the equilibrium price. The market for this contract is:
A．
| A. limit up. |
B．
| B. locked limit. |
C．
| C. limit down. |