施工现场应按桩机使用说明书的要求进行整平压实，地基承载力应满足桩机的使用要求。在基坑

在运用最优资产组合理论进行投资分析的时候，通常情况下，最优证券组合的选择应满足（）。

A.最优组合应位于有效边界上

B.最优组合应位于投资者的无差异曲线上

C.最优组合是唯一的，是无差异曲线与有效边界的切点

D.上述三条件满足其中之一即可

E.最优组合不是唯一的

We have been in Australia for three days. We’re having a great time here. Australia is the   小题1:  (six) largest country in the world. There is so differently to see that it is  小题2: （不可能的） for me to tell you everything. Sydney is a beautiful city. There are many big trees and beautiful   小题3: (花朵) around the houses and they look really beautiful. There are also some   小题4: (特殊的) animals in Australia, such as kangaroos and koalas. They are really lovely.

During the past three days we 小题5:  ( visit ) many places of interest around Sydney. I’d like to小题6:(花费) more time here, but we will fly to another city, Cairns ,to see coral beds(珊瑚礁)tomorrow. It is said that words cannot  小题7:  (描述)the beauty of the colorful corals. Many famous cartoon films were  小题8: ( make ) there. Now we are busy packing our bags so that we will not lose time when we leave. We can enjoy小题9:  (our) in Cairns this time tomorrow. I’m looking forward to小题10:  ( go )there!

某工地食堂发生食物中毒事故，其处理步骤包括：①报告中毒事故；②事故调查；③事故处理；④处理事故责任者；⑤提交调查报告。下列处理顺序正确的是（）。

A.①④②③⑤ 

B.②⑤④③① 

C.②④③①⑤ 

D.①③②④⑤ 

股票发行价格的确定方法主要有( )。

A．市盈率法

B．净资产倍率法

C．竞价确定法

D．现金流量折现法

在窗体上画一个命令按钮，然后编写如下事件过程：
Option Base 1
Private Sub Command1_Click()
Dim a As Variant
a= Array (1,2,3,4)
j=1
for i=a To 1 Step-1
s=s+ a(i)*j
j=j*10
Next i
Print s
End Sub
运行上面的程序，单击命令按钮，其输出结果是______ 。

A．4321

B．12

C．34

D．1234