开放性试题一般分为以下几种情况:1、条件开放型,即由结论探究其存在的条件;2、结论开放型,即由条件探究其可能得出的结论;3、条件和结论开放型。即有条件、有结论,探究其中一方发生变化时另一方的变化情况。(也称图形开放型)4、结论和图形共同开放即有条件、探究其结论和图形 The open questions are generally divided into the following situations: 1. Conditional open type, that is, the conditions for inquiring about its existence from the conclusions; 2. The open type of conclusions, that is, conclusions that may be drawn from conditional inquiry; 3. Conditions and conclusions . That is, there are conditions and conclusions that explore the change in the other party when one party changes. (Also known as open graphics) 4. Conclusions and graphics are open together to be conditional, explore their conclusions and graphs