【单选题】若B为非终结符,则A→α·Bβ为( )项目。
【单选题】The students __________their papers by the end of this month.
【判断题】油菜春季的管理目标是:春发稳长促分枝;薹壮蕾多争花多,争粒争重提品质。
【单选题】Who are Nancy and Jenny?
A.
students from Singapore and Malaysia
B.
students who have travelled to Singapore and Malaysia
C.
students who have researched Singapore and Malaysia
【简答题】个性是指一个人的整个心理面貌,它是________和________的总和。
【单选题】若B为非终结符,则A→α· 为( )项目。
【单选题】BT-3GΙΙΙ 型扫频仪的扫频范围是( )