单选题1, 2, 6, 7, 9A three-digit integer is to be formed from the digits listed above. If the first digit must be odd, either the second or the third digit must be 2, and no digit may be repeated, how many such integers are possible?A 6B 9C 18D 24E 30

阅读以下说明，回答问题1～4，将解答填入对应的解答栏内。

[说明] 输入1个长整型，求各位数字的平方和。

例如：输入-123，输出14。

include ＜stdio. h＞

void main( )

{ int digit;

long in , s;

seanf(" % Id", &in );

(1);

(2);

while(in ＞0) {

(3);

s = s + digit* digit;

(4);

}

pfinff( "sum = % 1dn", s );

}

单击一次命令按钮之后，在对话框中输入12，2，34，23，窗体中的输出结果为______。 Private Sub Command1_ Click () Dim a(4) As Integer For i = 1 To 4 a (i) = Val (InputBox (“请输入元素”)) Next i plus a(1), a(2), a(3) End Sub Sub plus(first As Integer, second As Integer, third As Integer, Optional forth) n = first + second + third If Not IsMissing (forth) Then n = n + forth End If Print n End Sub

A．14

B．71

C．48

D．37

There are still many things to straighten out before we can build this factory. First, there is the problem of money. Second, we need to import some of the key equipment. Third, we must set up a strong team to run the factory.()

此题为判断题(对，错)。

3．—__________ 1 go out for a while?

—No，you __________ You must finish your homework first．

A． Must，needn't

B． Can，may

C． May，mustn't

D． May，must

is a sequence of letters and digits, the first character must be a letter.

A．An identifier

B．A string

C．An array

D．program

Refertotheexhibit.TheSt.LegerEmergencyResponseSupplyCompanyhasahome-officeworker,Ms.Oswego,whoisattachedtoitsvoicenetwork.Whichconfigurationcommand,whenaddedtotheconfigurationshownonbothRouterT1andRouterT2wouldallowthoseattachedtoRouterAtobeabletocallMs.Oswego?（）

A.prefix

B.num-exp

C.digit-strip

D.nodigit-strip

E.forwarddigits

F.translation-rule

设有一个判断语句

if(!(ch＞='0'&&ch＜='9'))printf(“This is not a digit!\n”);

else printf(“This is a digit!\n”);

为实现判定一条件覆盖，需要设计的测试用例个数至少应为

A) 1

B) 2

C) 3

D) 4

A．

B．

C．

D．

Providing you are not sailing in the Red Sea or another special area as listed in ANNEX V of MARPOL，how many miles from land must you be to throw garbage including bottles，rags，and glass that has not been ground up into the sea?

A.3 nm

B.6 nm

C.12 nm

D.25 nm