地上液化气贮罐之间的安全间距应小于相邻罐中较大罐的（）。
A.半径
B.直径
C.周长
D.2倍周长
参考答案：A
[问题2] 从以下备选答案内为程序中(3)～(7)处空缺选择正确答案，并填入答题纸对应的解答栏内。 (3)～(7)备选答案：
A．Text B．Submit C．Password D．Radio E．Checkbox F．Option G．Select H．Reset
We are going to have a singing party tonight. Would you like to join us?（）
A.I'm afraid not, because I have to go to an important meeting.
B.Of course not. I have no idea.
C.No, I can't.
D.That's all set.
