皮带发生局部跑偏时，司机可直接用手搬动（）进行调整。 A.调心托辊架 B.张紧装置

在窗体上画一个名称为Command1的命令按钮，一个名称为Label1的标签，然后编写如下事件过程：
Private Sub Command1_Click()
s=0
For i=1 To 15
x=2*i-1
if x Mod 3=0 Then s=s+1
Next i
Labe11．Caption=s
End Sub
程序运行后，单击命令按钮，则标签中显示的内容是______。

A．1

B．5

C．27

D．45

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet.
The key to SNMP (76) is its simplicity. It has a small command set that does a good job of collecting information from (77) any network device. In a SNMP environment, (78) of the work is handled by the network management system. Devices that are being managed are not (79) with processing (80) that might affect their performance.

A．many

B．almost

C．a lot of

D．nearly

弱酸性药物在酸性尿中（）.

A．解离多，再吸收多，排泄慢

B．解离多，再吸收少，排泄快

C．解离少，再吸收多，排泄慢

D．解离少，再吸收少，排泄快

E．解离多，再吸收少，排泄慢

设X在区间[a，b]上服从均匀分布，则数学期望EX=（）

A.a+b

B.a-b

C.（a+b）的2倍

D.（a+b）的一半

桥梁竣工测量的项目主要有哪些？