在Visual FoxPro中释放和关闭表单的方法是 【7】 。
参考答案：RELEASE
解析：释放和关闭表单的方法是RELEASE方法。
He is very excited because it’s the first time that he _____ with a foreigner in English. [ ]
A. has talked
B. had talked
C. is talking
D. was talking
0．38kV架空线路每相引下线与邻相的引下线之间的净空距离，不应小于（）mm。
A.50
B.150
C.200
D.250
