电气控制线路原理图中各电器触头.操作开关均处于何种状态?
参考答案:
电气控制线路原理图中各电器触头的位置均处在未通电状态,操作开关应为工作机械开动前的状态。
目前,江西电信提供的互联网接入方式主要包括()。
A.ADSL
B.CDMA
C.光纤LAN
D.WLAN
—What do you mean ________ saying “The boy is overgrowing”?
— I mean that he is tall ________ his age.
A.by; for
B.as to; for
C.about; with
D.by; to