下列关于中国冶铁业发展的表述，正确的有 ①世界最早的铁器出现在中国②中国书籍的的

— Time________.It's likely that we'll miss the deadline.

— Don't worry.We have already got through 80% of the job. [      ]

A. is running out  

B. has run out

C. is being running out  

D. has been run out

根据汉意写单词。

1. 牛肉 ________________

2. 鱼肉 ________________

3. 吃、喝 ________________

4. 一些 ________________

5. 喜欢 ________________

某个窗体已编写以下事件过程：
Private Sub Form_Click()
Dim k as Integer, n as Integer, m as Integer
n=5
m=1
k=1
Do While k＜=n
m=m*2
k=k+1
Loop
MsgBox m.vbYesNo+vbInformation,"Result"
End Sub
打开窗体运行后，单击窗体，弹出的信息框外观样式是______。

足月儿皮肤外观的特点是

A．肤色红润
B．皮下脂肪少
C．皮肤发亮
D．皮肤水肿
E．皮肤毳毛多

发电机转子绕组发生两点接地有哪些危害？