等离子弧切割和焊接事，其噪声较大，但对人体不造成危害。
查看答案
非洲的地中海沿岸国家中，以出产优质长绒棉著称的国家是（）
A. 阿尔及利亚
B. 埃及
C. 突尼斯
D. 利比亚
Although recent years have seen substantial reductions in noxious pollutants from individual motor vehicles, the number of such vehicles（）.
A. have been steadily increasing
B. has been steadily increased
C. has been steadily increasing
D. have been steadily increased
Which statement is FALSE regarding WebLogic Server 12c?（）
A. supports Java EE 6.0
B. supports WebLogic Web Services 8.1 Application Environment
C. includes a new Maven plug-in
D. supports use of annotations in resource adapter class file
RTU中COM3（下行接口）表示与智能电表通讯，多功能电表地址指定为1。（）
A. 正确
B. 错误
微信支付 
支付宝支付