一类防雷建筑物高于()时,二类防雷建筑物高度超过()时,尚应采取防侧击和等电位保护措施。
参考答案:30米;45米
He for ten years.[ ]
A. has been married
B. married
C. got married
D. has married
在计算机内部,所有信息的存储形式都是()。
A.字符
B.二进制码
C.BCD码
D.ASCII码