海船船员考试
单选题PLS BE INFORMED THAT SUB VSL’S TWO KINDS OF CERTIFICATES HAVE EXPIRED. ONE IS DERATING CERTIFICATE AND THE OTHER IS SAFETY EQUIPMENT CERITFICATE. According to this telex,（）.A two certificates have expiredB two certificates will expireC one of the two c
题目
two certificates have expired
two certificates will expire
one of the two certificates have expired
one of the two certificates will expire
参考答案和解析
相似问题和答案
第1题：
There are __________ kinds of special foods mentioned in the passage.
A. two B. three C. four D. five
第2题：
A、Sub S1(ByVal n!())
B、Sub S1(n!) as Integer
C、 Function S1%(S1%)
D、 Function S1(ByVal n!)
第3题：
A、verbal
B、successful
C、unilateral
D、unsuccessful
第4题：
编写如下事件过程： Private sub sub1 (ByVal x1 As String, y1 As String) Dim xt As String Dim i As Integer i = Len(x1) Do While i＞= 1 xt = xt + Mid(x1, i, 1) i=i-1 Loop y1 = xt End Sub Private Sub Form. Click() Dim s1 As String, s2 As String s1= "teacher" sub1 s1, s2 Print s2 End Sub 程序运行后，单击窗体，则窗体上显示的内容是
A．rehcaet
B．tahreee
C．themee
D．eerthea
解析：可以看出，Sub1(ByValx1AsString，y1AsString)的作用是将参数x1的字符逆序处理，然后赋给y1，而y1是传址引用的，可以直接返回处理结果。
第5题：
以下程序用于求S=1+3+32+33+…+310的值。
Private Sub Commandl_Click()
S=1
T=1
ForI=1 To 10
T=______
S=S+T
NextI
Print"S="；S
End Sub
T*3
第6题：
Science is still ______ of the causes of many kinds of cancer.
A．ignorant
B．unconscious
C．conscious
D．informed
解析：ignorant可以指“无学识的，愚昧的”，还指“不知道的”；unconscious意为“失去知觉的，不省人事的；无意识的”；conscious意为“有知觉的，意识到的”；informed意为“获悉，告知”。
第7题：
performatives are sub-divided into two big types. They are explicit performatives and implicit performatives.()
第8题：
A.It’s true. Two is always better than one.
B.That’s quite right. We can attract more people.
C.It’s great idea. We need to put in more money then.
第9题：
A.
B.
C.
D.
E.
第10题：
写出程序运行的结果
Public class Base
Public virtual string Hello() {return “Base”;}
Public class Sub:Base
Public override string Hello() {return “Sub”;}
1. Base b = new Base(); b.Hello;
2. Sub s = new Sub(); s.Hello;
3. Base b = new Sub (); b.Hello;
4. Sub s = new Base(); s.Hello;