水稻的花序为穗状花序。
参考答案：错
采区开采结束后（）天内，必须在所有与已采区相连通的巷道中设置防火墙，全部封闭采区。
A、30
B、45
C、60
The experts in grammar analysis and translation approach believed that the human minds could be trained by logical analysis of the classic language，memorization of complicated rules，and ______ between languages.
