根据下面一段对话内容，从对话右边方框内的选项中选出能填入空白处的最佳选项，其中两项为多余选项。

A:A music tour. ().

B:Wowf That’s great. They are pretty famous.

A．This tour is the chance of lifetime.

B．It goes all over North America and South America.

C．It looks like you’re dreaming about something.

D．You’ll have to quit school and your job at the store.

E．My agent wants me to go on a tour with Are’s Jazz Band.

F．Have you told anyone about this yet

G．It would be a great opportunityl

某均质细砂土场地，土层重度为18kN/m³，承载力特征值f_ak=105kPa，地下水埋深为4.0m，建筑物采用独立基础，埋深为1.0m，底面尺寸为2.5m×2.5m，荷载为F=1800kN，采用换填垫层法进行地基处理，垫层厚度为2.0m，垫层为碎石，重度为20kN/m³，按《建筑地基处理技术规范》计算以下选做题。

下卧层验算结果为（）。

A.满足要求 

B.不满足要求