重症肌无力的主要临床特征为（）

A.全身骨骼肌均可无力

B.颅神经支配肌肉的无力多于脊神经支配的肌肉

C.受累骨骼肌的极易疲劳性和短时休息后好转

D.病情波动

E.感染后肌无力加重

单击一次命令按钮之后，下更程序代码的执行结果为______ 。 Public Sub Proc(a() As Integer) Static i As Integer Doa(i) = a(i) + a(i + 1)i=i+1 Loop While i ＜ 2End Sub Private Sub Command1_Cliek() Dim m As Integer Dim i As Integer Dim x(10) As Integer For i = 0 To 4 x(i) = i + 1 Next i For i = 1 To 2 Call Proc (x) Next i For i = 0 To 4 Print x(i); Next i End Sub

A．3 4 7 5 6

B．3 5 7 4 5

C．1 2 3 4 5

D．1 2 3 5 7