亚急性期脑血肿在T1WI和T2WI均为高信号的原因主要是因为()。A、铁在红细胞内外分布不均匀,造成局部磁化率不均匀B、细胞内去氧血红蛋白的顺磁作用C、细胞内氧合血红蛋白的顺磁作用D、细胞外去氧血红蛋白的顺磁作用E、细胞外高铁血红蛋白的顺磁作用

亚急性期脑血肿在T1WI和T2WI均为高信号的原因主要是因为()。

  • A、铁在红细胞内外分布不均匀,造成局部磁化率不均匀
  • B、细胞内去氧血红蛋白的顺磁作用
  • C、细胞内氧合血红蛋白的顺磁作用
  • D、细胞外去氧血红蛋白的顺磁作用
  • E、细胞外高铁血红蛋白的顺磁作用

相关考题:

假定有如下的Sub过程:Sub sfun(x As Single,y As Single)t=xx=t/yy=t Mod yEnd Sub在窗体上添加一个命令按钮(名为Command1),然后编写如下事件过程:Private Sub Command1_Click()Dim a as singleDim b as singlea=5b=4sfun a,bMsgBox a chr(10)+chr(13) bEnd Sub打开窗体运行后,单击命令按钮,消息框的两行输出内容分别为A.1和1B.1.25和1C.1.25和4D.5和4

(12)有下列Sub过程: Sub Sub(x As Single,y As Single) t=x x=t/y y=t Mody End Sub 在窗体上的命令按钮Commandl中,编写下列事件过程,执行该事件过程调用Sun过程,结果是( )。 Private Sub Commandl_Click() Dim a As Single Dim b As Single a=5 b=4 Sun a,b Print a;b End Sub A.1.25 1 B.5 4 C.4 5 D.1 1.25

有如下SUB过程:Sub s(x As Single,y As Single)t=xx=t / yy=t Mod yEnd Sub在窗体上添加一个命令按钮,然后编写如下事件过程:Private Sub Form_Click()Dim a As SingleDim b As Singlea=5b=4s a,bPrint a,bEnd Sub则程序运行后,单击命令按钮,输出的结果为【 】 。

假定有如下的Sub过程: Sub sfun(x As Single,y As Single) t=x x=t/y y=t Mod y End Sub 在窗体上添加一个命令按钮(名为Command1),然后编写如下事件过程: Private Sub Command1 Click() Dim a as single Dim b as single a=5 b=4 sfun a,b MsgBox a chr(10)+chr(13)b End Sub 打开窗体运行后,单击命令按钮,消息框的两行输出内容分别为( )。A.1n1B.1.25和1C.1.25和4D.5和4

有如下事件过程:Private Sub Form. Active ( )Dim Score (1 to 3) As IntegerDim i As IntegerDim t As VariantFori=3 To 1 step-1Score (i) = 2 * iNextFor Each t In ScorePrint tNextEnd Sub程序运行后窗体上显示的值为【 】。

有如下程序: Private Sub Command1_Click() Dim a As Single Dim b As Single a=5:b=4 Call Sub1(a,b) End Sub Sub Sub1(x As Single,y As Single) t=X X=t\Y Y=t Mod y End Sub 在调用运行上述程序后,a和b的值分别为A.0 0B. 1 1C.2 2D.1 2

假定有如下的Sub过程: sub sfun(x As Single,y As Single) t=x x=t/y y=t Mod y End Sub 在窗体上添加一个命令按钮(名为Command1),然后编写如下事件过程: Private Sub Command1_Click() Dim a as single Dim b as single a=5 b=4 sfun a,b MsgBox a chr(10)+chr(13) b End Sub 打开窗体运行后,单击命令按钮,消息框的两行输出内容分别为 ______。A.1和1B.1.25和1C.1.25和4D.5和4

有如下程序: Private Sub Commandl_Click() Dim a As Single Dim b As Single a=2:b=4 Call CS(a,b)End Sub Sub CS(x As Single,y As Single) t=X x=t\y y=t Mod y End Sub 程序运行后,单击命令按钮,a和b的值分别为A.0 0B.1 1C.0 2D.1 2

假定有如下的Sub过程: Sub Func(x As Single, y As Single) t=x x=t/y y=t Mod y End Sub 在窗体上画一个命令按钮,然后编写如下事件过程: Private Sub Command1_Click() Dim a As Single Dim b As Single a=6 b=5 Func(a, B) Print a, b End Sub 程序运行后,单击命令按钮,输出结果为 ______。A.6 5B.1 1C.1.2 5D.1.2 1

假定有如下的Sub过程: Sub S(x As Single,y As Single) t=x x=t/y y=t Mod y End Sub 在窗体上画一个命令按钮,然后编写如下事件过程: Private Sub Command1_Click() Dim a As Single Dim b As Single a=5 b=2 S a,b print a,b End Sub 程序运行后,单击命令按钮,输出结果是( )。A.5 2B.1 1C.1.25 4D.2.5 1

若有如下Sub过程:Sub sfun(x As Single,y As Single)t=Xx=t/yy=t Mod YEnd Sub在窗体中添加一个命令按钮Command33,对应的事件过程如下:Private Sub Command33_Click()Dim a As SingleDim b As Singlea=5: b=4sfun a,bMsgBox a&chr(10)+chr(13)bEnd Sub打开窗体运行后,单击命令按钮,消息框中有两行输出,内容分别为A.1和1B.1.25和1C.1.25和4D.5和4

假定有如下的Sub过程: Sub sfun(x As Single,y As SinglE)t=x x=t/y y=t Mod y End Sub 在窗体上添加一个命令按钮(名为Command1),然后编写如下事件过程: Private Sub Command1_Click( ) Dim a as single Dim b as single a=5 b=4 sfun a,b MsgBox a char(10A.1和1B. 1.25和1C. 1.25和4D. 5和4

单击一次命令按钮之后,窗体中的输出结果为______。 Private Sub Command1_ Click() Dim a As Single Dim b As Single a = 10 b = 20 Call Num(a,B)Print a, b End Sub Sub Num(a,B)t = a a = b / t b = t End SubA.20 10B.10 20C.2 10D.10 10

编写如下事件过程: Private Sub Form_KeyDown (KeyCode As Integer,Shift As Integer) Print Chr(KeyCode) End Sub Private Sub Form_Key Press (KeyAscii As Integer) Print Chr (Key Ascii) End Sub 在一般情况下(即不按住Shift键和锁定大写键时)运行程序,若按“T”键,则程序输出的结果是A.T TB.t TC.T TD.t t

假定有如下的Sub过程:Sub Sub1(x As Single,y As single)t=xx=t/yy=t Mod yEnd Sub在窗体上画一个命令按钮,然后编写如下事件过程:Private Sub Command1_click()Dim a As SingleDim b As Singlea=5b=4Sub1 a,bPrint a;bEnd Sub程序运行后,单击命令按钮,输出结果为A.B.C.D.

假定有如下的Sub过程:Sub Sub1(x As Single, y As single)t=xx=t / yy=t Mod yEnd Sub在窗体上画一个命令按钮,然后编写如下事件过程:Private Sub Command1_Click()Dim a As SingleDim b As Singlea=5b=4Sub1 a,bPrint a;bEnd Sub程序运行后,单击命令按钮,输出结果为A.54B.] 1]]1C.] 1.2]]5.4D.] 1.25]]1

有如下程序。 Private Sub Commandl_Click() Dim a As Single Dim b As Single a=5:b=4 Call Sub1 ( a,B)End Sub Sub Subl(x As Single, y As Single) t=x x=t\y y = t Mod y End Sub 在调用运行上述程序后,a和b的值分别为A.0 0B.1 1C.2D.1 2

假定有如下的Sub过程:Sub Sub1 (x As Single, y As Single) t=x x = t/y y = t Mod yEnd Sub 在窗体上画一个命令按钮,然后编写如下事件过程:Private Sub Command1_ Click() Dim a As Single Dim b As Single a = 5 b = 4 Sub1 a, b Print a; b End Sub 程序运行后,单击命令按钮,输出结果为______。A.5 4B.1 1C.1.2 5.4D.1.25 1

现有如下Sub过程: Sub fun(x es single,y as single) t = x x = t/y y = t mod y End sub在窗体上添加命令按钮(cmD) ,编写如下事件过程: Private sub cmd_click( ) Dim a as single Dim b as single a = 5 b = 4 fun a, b Msgbox a chr(10) + chr(13) b End sub运行程序后,单击按钮,则在消息框中显示的内容为( )A.1和1B.1.25和1C.1.25和4D.5和4

有如下程序。Private Sub Command1_Click()Dim a As SingleDim b As Singlea=5: b=4Call Sub1(a, b)End SubSub Sub1(x As Single, y As Single)t=xx=t \ yy=t Mod yEnd Sub在调用运行上述程序后,a和b的值分别为A.0 0B.1 1C.2 2D.1 2

有如下程序: Private Sub Command1 Click() Dim a As Single Dim b As Single a=5:b=4 Call S(a,B)End Sub Sub S(x As Single,y As Single) t=x x=t\y y=t Mod y End Sub 在调用运行上述程序后,a和b的值分别为A.0 0B.1 1C.2 2D.1 2

有如下Sub过程: Sub Sun(x As Single, y As Single) t=x x=t/y y=t Mod y End Sub 在窗体上的命令按钮Command1中,编写如下事件过程,执行该事件过程调用Sun过程,结果为( )。 Private Sub Command1_Click() Dim a As Single Dim b As Single a=5 b=4 Sun a, b Print a; b End SubA.1.25 1B.5 4C.4 5D.1 1.25

有下列Sub过程:Sub Sun(x As Single,y As Single)t=xx=t/yy=t ModyEnd Sub在窗体上的命令按钮Command1中,编写下列事件过程,执行该事件过程调用Sun过程,结果是( )。Private Sub Conunandl Cliek()Dim a As SingleDim b As Singlea=5b=4Sun a,bPrint a;bEnd SubA.1.25 1B.5 4C.4 5D.1 1.25

下列脑内血肿的MRI表现哪些正确()A、呈圆形或不规则形,其影像特征及信号演变与自发性脑内血肿一致B、超急性期血肿T1WI呈略低信号,T2WI和PDWI呈高信号C、急性期血肿T1WI呈等信号,T2WI呈低信号D、亚急性期血T1WI呈等信号,T2WI呈高信号E、慢性期血肿T1WI和T2WI上核心层和核外层均为高信号

下列脑内血肿的MRI表现,正确的为() A、呈圆形或不规则形,其影像特征及信号演变与自发性脑内血肿一致B、超急性期血肿T1WI呈略低信号,T2WI和PDWI呈高信号C、急性期血肿T1WI呈等信号,T2WI呈低信号D、亚急性期血肿T1WI呈等信号,T2WI呈高信号E、慢性期血肿T1WI和T2WI上核心层和核外层均为高信号

单选题变直径圆管流,细断面直径d1,粗断面直径d2=2d1,粗细断面雷诺数的关系是( )。ApResub1/sub=0.5Resub2/sub/pBpResub1/sub=Resub2/sub/pCpResub1/sub=1.5Resub2/sub/pDpResub1/sub=2Resub2/sub /p

多选题下列脑内血肿的MRI表现,正确的为()A呈圆形或不规则形,其影像特征及信号演变与自发性脑内血肿一致B超急性期血肿T1WI呈略低信号,T2WI和PDWI呈高信号C急性期血肿T1WI呈等信号,T2WI呈低信号D亚急性期血肿T1WI呈等信号,T2WI呈高信号E慢性期血肿T1WI和T2WI上核心层和核外层均为高信号

多选题血肿的MRI信号复杂,下列描述哪些是正确的()。A急性期血肿在T1WI为等信号,T2WI为低信号B亚急性早期血肿,T1WI在血肿周边开始出现高信号,逐渐向内发展C亚急性晚期血肿,T1WI和T2WI都为高信号D慢性期血肿也呈T1WI和T2WI高信号E慢性期血肿,在T2WI上,血肿外出现低信号环